Title: Cheap Flights from Houston (IAH) to Marathon (MTH) - Expedia.ca ![Marathon which includes swimming, tropical scenes and a sandy beach](https://images.trvl-media.com/place/2437/cc4c0572-7b75-47ab-8142-b235acf8743c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/2437/cc4c0572-7b75-47ab-8142-b235acf8743c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Houston (IAH) to Marathon (MTH) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iah,to:mth,departure:19/10/2025TANYT&leg2=from:mth,to:iah,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from Houston Airport to MTH? > Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Houston Airport to MTH start from . Book ASAP to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Houston Airport to MTH? > We get that your situation can change unexpectedly, so we've made it as simple as possible for you to cancel your flight online. Just head to the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Houston Airport to MTH that have flexible change policies? > Flights from Houston Airport to MTH offering flexible change policies are available with many carriers. Simply use our "No change fees" filter when searching. You'll only need to cover the cost difference between the two flights, without any additional fees to worry about. ### How far is the flight from IAH to MTH? > The flying distance between George Bush Intercontinental Airport (IAH) and MTH is 1,550 kilometres. Close your eyes or read a good book and the trip will zip on by. ### Which airlines fly direct from IAH to MTH? > Direct flights aren't available, so you'll have to make at least one stop between Houston Airport and MTH. Take advantage of the layover time to stretch your legs and enjoy some personal space. ### Are IAH to MTH flight tickets cheaper when they're purchased at the last minute? > Fares from George Bush Intercontinental Airport (IAH) to MTH are available up to 12 months prior to departure on Expedia. And although you may pick up fantastic last-minute deals, it's never a sure thing. Also, booking your flights ahead of time means you'll have more options — and you can avoid landing the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so keep checking in for all the latest specials. ## Travel information | Origin airport | George Bush Intercontinental | | --- | --- | | Destination airport | Florida Keys Marathon | | Distance | 1517 km | ## Book with confidence ### Houston to Marathon Flights **The easy way to book your flights from Houston to Marathon**  With Expedia, it’s simple to find and book flights to Marathon from Houston whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Florida Keys Marathon, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Houston to Marathon today, tomorrow, or this week.   **Save dollars with cheap flights from George Bush Intercontinental, IAH to Florida Keys Marathon, MTH**  Sort your search results by price to find great deals on your flight from Houston to Marathon—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Marathon from Houston currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Marathon   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Marathon from Houston**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Marathon with Expedia today. ## Explore a world of travel with Expedia - Flights - [Flights from Cairo to Marathon](https://www.expedia.ca/lp/flights/178243/2437/cairo-to-marathon) - [Flights from Calgary to Marathon](https://www.expedia.ca/lp/flights/178245/2437/calgary-to-marathon) - [Flights from Columbus to Big Torch Key](https://www.expedia.ca/lp/flights/178251/553248635974614531/columbus-to-big-torch-key) - [Flights from Dallas to Marathon](https://www.expedia.ca/lp/flights/178253/2437/dallas-to-marathon) - [Flights from Detroit to Marathon](https://www.expedia.ca/lp/flights/178255/2437/detroit-to-marathon) - [Flights from New York to Ramrod Key](https://www.expedia.ca/lp/flights/178293/6156102/new-york-to-ramrod-key) - [Flights from Orlando to Cudjoe Key](https://www.expedia.ca/lp/flights/178294/3000430966/orlando-to-cudjoe-key) - [Flights from Ottawa to Marathon](https://www.expedia.ca/lp/flights/178296/2437/ottawa-to-marathon) - [Flights from Toronto to Islamorada](https://www.expedia.ca/lp/flights/178314/10768/toronto-to-islamorada) - [Flights from Toronto to Marathon](https://www.expedia.ca/lp/flights/178314/2437/toronto-to-marathon) - [Flights from Vancouver to Marathon](https://www.expedia.ca/lp/flights/178315/2437/vancouver-to-marathon) - [Flights from Paris to Cudjoe Key](https://www.expedia.ca/lp/flights/179898/3000430966/paris-to-cudjoe-key) - [Flights from Edmonton to Marathon](https://www.expedia.ca/lp/flights/180002/2437/edmonton-to-marathon) - [Flights from Kingston to Duck Key](https://www.expedia.ca/lp/flights/180034/184267/kingston-to-duck-key) - [Flights from Albany to Marathon](https://www.expedia.ca/lp/flights/277/2437/albany-to-marathon) - [Flights from Plattsburgh to Marathon](https://www.expedia.ca/lp/flights/2816/2437/plattsburgh-to-marathon) - [Flights from Tyler to Marathon](https://www.expedia.ca/lp/flights/3594/2437/tyler-to-marathon) - [Flights from Bedford to Marathon](https://www.expedia.ca/lp/flights/530/2437/bedford-to-marathon) - [Flights from Tada-U to Marathon](https://www.expedia.ca/lp/flights/553248635957385750/2437/tada-u-to-marathon) - [Flights from Milwaukee to Duck Key](https://www.expedia.ca/lp/flights/602647/184267/milwaukee-to-duck-key) - [Flights from Tampa to Islamorada](https://www.expedia.ca/lp/flights/602996/10768/tampa-to-islamorada) - [Flights from Naples to Marathon](https://www.expedia.ca/lp/flights/6034774/2437/naples-to-marathon) - [Flights from Ithaca to Marathon](https://www.expedia.ca/lp/flights/6056124/2437/ithaca-to-marathon) - [Flights from Owensboro to Marathon](https://www.expedia.ca/lp/flights/6059602/2437/owensboro-to-marathon) - [Flights from Winnipeg to Marathon](https://www.expedia.ca/lp/flights/6141041/2437/winnipeg-to-marathon) - [Flights from Beirut to Marathon](https://www.expedia.ca/lp/flights/6144605/2437/beirut-to-marathon) - [Flights from South Burlington to Marathon](https://www.expedia.ca/lp/flights/6739/2437/south-burlington-to-marathon) - [Flights from Corpus Christi to Marathon](https://www.expedia.ca/lp/flights/915/2437/corpus-christi-to-marathon) - [Flights from Cartagena to Marathon](https://www.expedia.ca/lp/flights/926/2437/cartagena-to-marathon) - [Flights from Palenque to Marathon](https://www.expedia.ca/lp/flights/9463/2437/palenque-to-marathon) - [Flights from Austin (AUS) to Key West (EYW)](https://www.expedia.ca/lp/flights/aus/eyw/austin-to-key-west) - [Flights from Boca Raton (BCT) to Key West (EYW)](https://www.expedia.ca/lp/flights/bct/eyw/boca-raton-to-key-west) - [Flights from Bangor (BGR) to Key West (EYW)](https://www.expedia.ca/lp/flights/bgr/eyw/bangor-to-key-west) - [Flights from Bemidji (BJI) to Key West (EYW)](https://www.expedia.ca/lp/flights/bji/eyw/bemidji-to-key-west) - [Flights from Branson (BKG) to Key West (EYW)](https://www.expedia.ca/lp/flights/bkg/eyw/branson-to-key-west) - [Flights from Bellingham (BLI) to Key West (EYW)](https://www.expedia.ca/lp/flights/bli/eyw/bellingham-to-key-west) - [Flights from Nashville (BNA) to Key West (EYW)](https://www.expedia.ca/lp/flights/bna/eyw/nashville-to-key-west) - [Flights from Boston (BOS) to Key West (EYW)](https://www.expedia.ca/lp/flights/bos/eyw/boston-to-key-west) - [Flights from Bartow (BOW) to Key West (EYW)](https://www.expedia.ca/lp/flights/bow/eyw/bartow-to-key-west) - [Flights from Burlington (BTV) to Key West (EYW)](https://www.expedia.ca/lp/flights/btv/eyw/burlington-to-key-west) - [Flights from Belize City (BZE) to Key West (EYW)](https://www.expedia.ca/lp/flights/bze/eyw/belize-city-to-key-west) - [Flights from Charleston (CHS) to Key West (EYW)](https://www.expedia.ca/lp/flights/chs/eyw/charleston-to-key-west) - [Flights from Sault Ste. Marie (CIU) to Key West (EYW)](https://www.expedia.ca/lp/flights/ciu/eyw/sault-ste-marie-to-key-west) - [Flights from Charlotte (CLT) to Key West (EYW)](https://www.expedia.ca/lp/flights/clt/eyw/charlotte-to-key-west) - [Flights from Clearwater (CLW) to Key West (EYW)](https://www.expedia.ca/lp/flights/clw/eyw/clearwater-to-key-west) - [Flights from Cancun (CUN) to Key West (EYW)](https://www.expedia.ca/lp/flights/cun/eyw/cancun-to-key-west) - [Flights from Washington (DCA) to Key West (EYW)](https://www.expedia.ca/lp/flights/dca/eyw/washington-to-key-west) - [Flights from Denver (DEN) to Key West (EYW)](https://www.expedia.ca/lp/flights/den/eyw/denver-to-key-west) - [Flights from Dallas (DFW) to Key West (EYW)](https://www.expedia.ca/lp/flights/dfw/eyw/dallas-to-key-west) - [Flights from Dunedin (DUD) to Key West (EYW)](https://www.expedia.ca/lp/flights/dud/eyw/dunedin-to-key-west) - [Flights from Kalispell (FCA) to Key West (EYW)](https://www.expedia.ca/lp/flights/fca/eyw/kalispell-to-key-west) - [Flights from Flint (FNT) to Key West (EYW)](https://www.expedia.ca/lp/flights/fnt/eyw/flint-to-key-west) - [Flights from Spokane (GEG) to Key West (EYW)](https://www.expedia.ca/lp/flights/geg/eyw/spokane-to-key-west) - [Flights from Grand Forks (GFK) to Key West (EYW)](https://www.expedia.ca/lp/flights/gfk/eyw/grand-forks-to-key-west) - [Flights from Niagara Falls (IAG) to Key West (EYW)](https://www.expedia.ca/lp/flights/iag/eyw/niagara-falls-to-key-west) - [Flights from Houston (IAH) to Key West (EYW)](https://www.expedia.ca/lp/flights/iah/eyw/houston-to-key-west) - [Flights from International Falls (INL) to Key West (EYW)](https://www.expedia.ca/lp/flights/inl/eyw/international-falls-to-key-west) - [Flights from Kissimmee (ISM) to Key West (EYW)](https://www.expedia.ca/lp/flights/ism/eyw/kissimmee-to-key-west) - [Flights from Las Vegas (LAS) to Key West (EYW)](https://www.expedia.ca/lp/flights/las/eyw/las-vegas-to-key-west) - [Flights from Los Angeles (LAX) to Key West (EYW)](https://www.expedia.ca/lp/flights/lax/eyw/los-angeles-to-key-west) - [Flights from Melbourne (MLB) to Key West (EYW)](https://www.expedia.ca/lp/flights/mlb/eyw/melbourne-to-key-west) - [Flights from Manila (MNL) to Key West (EYW)](https://www.expedia.ca/lp/flights/mnl/eyw/manila-to-key-west) - [Flights from Minot (MOT) to Key West (EYW)](https://www.expedia.ca/lp/flights/mot/eyw/minot-to-key-west) - [Flights from Marco Island (MRK) to Key West (EYW)](https://www.expedia.ca/lp/flights/mrk/eyw/marco-island-to-key-west) - [Flights from Minneapolis (MSP) to Key West (EYW)](https://www.expedia.ca/lp/flights/msp/eyw/minneapolis-to-key-west) - [Flights from New Orleans (MSY) to Key West (EYW)](https://www.expedia.ca/lp/flights/msy/eyw/new-orleans-to-key-west) - [Flights from Myrtle Beach (MYR) to Key West (EYW)](https://www.expedia.ca/lp/flights/myr/eyw/myrtle-beach-to-key-west) - [Flights from Nassau (NAS) to Key West (EYW)](https://www.expedia.ca/lp/flights/nas/eyw/nassau-to-key-west) - [Flights from Ocala (OCF) to Key West (EYW)](https://www.expedia.ca/lp/flights/ocf/eyw/ocala-to-key-west) - [Flights from Ogdensburg (OGS) to Key West (EYW)](https://www.expedia.ca/lp/flights/ogs/eyw/ogdensburg-to-key-west) - [Flights from Ontario (ONT) to Key West (EYW)](https://www.expedia.ca/lp/flights/ont/eyw/ontario-to-key-west) - [Flights from Chicago (ORD) to Key West (EYW)](https://www.expedia.ca/lp/flights/ord/eyw/chicago-to-key-west) - [Flights from Plattsburgh (PBG) to Key West (EYW)](https://www.expedia.ca/lp/flights/pbg/eyw/plattsburgh-to-key-west) - [Flights from Philadelphia (PHL) to Key West (EYW)](https://www.expedia.ca/lp/flights/phl/eyw/philadelphia-to-key-west) - [Flights from Pompano Beach (PPM) to Key West (EYW)](https://www.expedia.ca/lp/flights/ppm/eyw/pompano-beach-to-key-west) - [Flights from Presque Isle (PQI) to Key West (EYW)](https://www.expedia.ca/lp/flights/pqi/eyw/presque-isle-to-key-west) - [Flights from Riverside (RAL) to Key West (EYW)](https://www.expedia.ca/lp/flights/ral/eyw/riverside-to-key-west) - [Flights from Raleigh (RDU) to Key West (EYW)](https://www.expedia.ca/lp/flights/rdu/eyw/raleigh-to-key-west) - [Flights from Richmond (RIC) to Key West (EYW)](https://www.expedia.ca/lp/flights/ric/eyw/richmond-to-key-west) - [Flights from Savannah (SAV) to Key West (EYW)](https://www.expedia.ca/lp/flights/sav/eyw/savannah-to-key-west) - [Flights from Orlando (SFB) to Key West (EYW)](https://www.expedia.ca/lp/flights/sfb/eyw/orlando-to-key-west) - [Flights from San Francisco (SFO) to Key West (EYW)](https://www.expedia.ca/lp/flights/sfo/eyw/san-francisco-to-key-west) - [Flights from Sault Ste. Marie (SSM) to Key West (EYW)](https://www.expedia.ca/lp/flights/ssm/eyw/sault-ste-marie-to-key-west) - [Flights from Venice (VCE) to Key West (EYW)](https://www.expedia.ca/lp/flights/vce/eyw/venice-to-key-west) - [Flights from Fredericton (YFC) to Key West (EYW)](https://www.expedia.ca/lp/flights/yfc/eyw/fredericton-to-key-west) - [Flights from Kamloops (YKA) to Key West (EYW)](https://www.expedia.ca/lp/flights/yka/eyw/kamloops-to-key-west) - [Flights from Kitchener (YKF) to Key West (EYW)](https://www.expedia.ca/lp/flights/ykf/eyw/kitchener-to-key-west) - [Flights from Kelowna (YLW) to Key West (EYW)](https://www.expedia.ca/lp/flights/ylw/eyw/kelowna-to-key-west) - [Flights from Québec (YQB) to Key West (EYW)](https://www.expedia.ca/lp/flights/yqb/eyw/quebec-to-key-west) - [Flights from Windsor (YQG) to Key West (EYW)](https://www.expedia.ca/lp/flights/yqg/eyw/windsor-to-key-west) - [Flights from Moncton (YQM) to Key West (EYW)](https://www.expedia.ca/lp/flights/yqm/eyw/moncton-to-key-west) - [Flights from Regina (YQR) to Key West (EYW)](https://www.expedia.ca/lp/flights/yqr/eyw/regina-to-key-west) - [Flights from Thunder Bay (YQT) to Key West (EYW)](https://www.expedia.ca/lp/flights/yqt/eyw/thunder-bay-to-key-west) - [Flights from Grande Prairie (YQU) to Key West (EYW)](https://www.expedia.ca/lp/flights/yqu/eyw/grande-prairie-to-key-west) - [Flights from Sudbury (YSB) to Key West (EYW)](https://www.expedia.ca/lp/flights/ysb/eyw/sudbury-to-key-west) - [Flights from Toronto (YTZ) to Key West (EYW)](https://www.expedia.ca/lp/flights/ytz/eyw/toronto-to-key-west) - [Flights from Charlottetown (YYG) to Key West (EYW)](https://www.expedia.ca/lp/flights/yyg/eyw/charlottetown-to-key-west) - [Flights from Victoria (YYJ) to Key West (EYW)](https://www.expedia.ca/lp/flights/yyj/eyw/victoria-to-key-west) - [Flights from St. John's (YYT) to Key West (EYW)](https://www.expedia.ca/lp/flights/yyt/eyw/st-johns-to-key-west) - [Flights from Nanaimo (ZNA) to Key West (EYW)](https://www.expedia.ca/lp/flights/zna/eyw/nanaimo-to-key-west) \*Available to Expedia members.