Title: Cheap Flights from Boston (BOS) to Union Island (UNI) - Expedia.ca ![Another beautiful day sailing! Grenadines by Sail...Day 4: Off to Another Country! http://onelungtravels.blogspot.com/2012/10/the-next-morning-we-woke-up-early-and.html](https://images.trvl-media.com/place/11652/f65a9055-7c92-4f4b-9ba4-6579afd84967.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Waterlogged Travels ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Boston (BOS) to Union Island (UNI) - [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 Logan International Airport (BOS) to Union Island (UNI) - ![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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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:bos,to:uni,departure:18/10/2025TANYT&leg2=from:uni,to:bos,departure:25/10/2025TANYT&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 Logan Intl. Airport to UNI? > The lowest price advertised for a round-trip flight from Logan Intl. Airport (BOS) to UNI is . But you better get moving. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport to UNI? > We get that things come up unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Logan Intl. Airport to UNI that have flexible change policies? > Flights from Logan Intl. Airport (BOS) to UNI with flexible change policies are available from several airlines. Simply use our "No change fees" filter during your search. You'll only need to pay the cost difference between flights, without any extra fees to worry about. ### How far is the flight from Logan Intl. Airport to UNI? > Around 3,400 kilometres separates Boston and Union Island, so pack some in-flight entertainment to keep you busy for a few hours. That juicy novel you've yet to start will do the trick. ### Which airlines fly direct from BOS to UNI? > Flying nonstop between Logan Intl. Airport (BOS) and UNI isn't possible at present. However, you'll still be able to book a flight to Union Island with at least one stop. ### Are BOS to UNI flight tickets cheaper when they're purchased at the last minute? > It is possible to get a fantastic last-minute deal from Logan Intl. Airport to UNI, but it can also be hit-or-miss. As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares air carrier prices and updates flight deals often, so you can be certain you're always seeing the latest offers. ## Travel information | Origin airport | Logan Intl. | | --- | --- | | Destination airport | Union Island | | Distance | 3417 km | ## Book with confidence ### Boston to Union Island Flights **The easy way to book your flights from Boston to Union Island**  With Expedia, it’s simple to find and book flights to Union Island from Boston 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 Union Island, 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 Boston to Union Island today, tomorrow, or this week.   **Save dollars with cheap flights from Logan Intl., BOS to Union Island, UNI**  Sort your search results by price to find great deals on your flight from Boston to Union Island—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Union Island from Boston 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 Union Island   - 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 Union Island from Boston**  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. 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