Title: Cheap Flights from St. Louis (STL) to Iasi (IAS) - Expedia.ca ![Panoramic view of Cultural Palace and central square in Iasi city, Romania](https://images.trvl-media.com/place/1556/f37f739e-b452-4ee8-a7d7-0be2611c4dad.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/1556/f37f739e-b452-4ee8-a7d7-0be2611c4dad.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from St. Louis (STL) to Iasi (IAS) - [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 Lambert-St. Louis International Airport (STL) to Iasi (IAS) - ![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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&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:stl,to:ias,departure:05/10/2025TANYT&leg2=from:ias,to:stl,departure:12/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 30% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from St. Louis to Iasi (STL - IAS) route information | Origin airport | Lambert-St. Louis Intl. | | --- | --- | | Destination airport | Iasi | | Distance | 8607 km | ## St. Louis to Iasi Flights **The easy way to book your flights from St. Louis to Iasi**  With Expedia, it’s simple to find and book flights to Iasi from St. Louis 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 Iasi, 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 St. Louis to Iasi today, tomorrow, or this week.   **Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Iasi, IAS**  Sort your search results by price to find great deals on your flight from St. Louis to Iasi—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Iasi from St. Louis 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 Iasi   - 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 Iasi from St. Louis**  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 Iasi with Expedia today. ## Frequently asked questions ### How much is a flight from Lambert-St. Louis Intl. Airport (STL) to IAS? > Start packing your bags, because round-trip flights from Lambert Field to Iasi Airport (IAS) start from . That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Lambert Field to Iași Intl. Airport? > The majority of flights can be cancelled online, but each airline has its own terms and conditions. If you do need to cancel your flight, go to our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Lambert Field to Iasi Airport (IAS) that have flexible change policies? > Plenty of carriers offer the option to reschedule your flight without a change fee. All you pay is the cost difference between flights. When looking for Lambert-St. Louis Intl. Airport (STL) to Iași Intl. Airport flights, you'll see a "No change fees" box for you to select. ### How far is the flight from Lambert-St. Louis Intl. Airport (STL) to Iasi Airport (IAS)? > You'll have 8,700 kilometres to cover on the long-haul St. Louis to Iasi route. Wear comfy clothes and consider taking a sleep mask and earplugs. ### Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Iași Intl. Airport? > There are no direct flights, so you'll have to make at least one stop between STL and IAS. Make the most of the layover time to stretch your legs and take a break. ### Are STL to Iasi Airport (IAS) flight tickets cheaper when they're purchased at the last minute? > Flight prices from STL to IAS are available up to a year before departure on Expedia. And although you may pick up a great last-minute deal, it's not something you should count on. Also, booking your flights ahead of time means you'll have more options — and you can avoid getting stuck in the dreaded middle seat! We're always updating our fares to bring you the biggest bargains, so keep checking in for all the latest specials. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Other ### Lodging - [3 Star Hotels in Iasi](https://www.expedia.ca/3Star-Iasi-Hotels.s30-0-d1556.Travel-Guide-Filter-Hotels) - [4 Star Hotels in Iasi](https://www.expedia.ca/4Star-Iasi-Hotels.s40-0-d1556.Travel-Guide-Filter-Hotels) - [5 Star Hotels in Iasi](https://www.expedia.ca/5Star-Iasi-Hotels.s50-0-d1556.Travel-Guide-Filter-Hotels) - [Balș Hotels](https://www.expedia.ca/Bals-Hotels.d807174257897746432.Travel-Guide-Hotels) - [Butea Hotels](https://www.expedia.ca/Butea-Hotels.d553248635943690394.Travel-Guide-Hotels) - [Comarna Hotels](https://www.expedia.ca/Comarna-Hotels.d807173935884251136.Travel-Guide-Hotels) - [Copou Hotels](https://www.expedia.ca/Copou-Iasi-Hotels.0-n553248635964998475-0.Travel-Guide-Filter-Hotels) - [Costuleni Hotels](https://www.expedia.ca/Costuleni-Hotels.d553248635943689976.Travel-Guide-Hotels) - 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