Title:  Cheap Flights from Boston (BOS) to Sun Valley (SUN) - Expedia.ca

  

![Around the curve in the road we drove into this stunning Sun Valley sunset. ](https://images.trvl-media.com/place/183166/e5a79077-5021-4cb0-8ac3-eeb4b75ab419.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

Photo by Adrianne Keffeler

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# Cheap Flights from Boston (BOS) to Sun Valley (SUN)

-   [Roundtrip](?flightType=roundtrip)
-   [One-way](?flightType=oneway)
-   [Multi-city](?flightType=multicity)

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## Popular airlines from Logan International Airport (BOS) to Sun Valley, ID (SUN-Friedman Memorial)

-   ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg)
    
    Alaska Airlines
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:bos,to:sun,departure:01/10/2025TANYT&leg2=from:sun,to:bos,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}])
-   ![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:sun,departure:01/10/2025TANYT&leg2=from:sun,to:bos,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}])
-   ![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:sun,departure:01/10/2025TANYT&leg2=from:sun,to:bos,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}])
-   ![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:sun,departure:01/10/2025TANYT&leg2=from:sun,to:bos,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}])
-   ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg)
    
    Hawaiian Airlines
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:bos,to:sun,departure:01/10/2025TANYT&leg2=from:sun,to:bos,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}])

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## Find the cheapest month to fly from Boston (BOS) to Sun Valley (SUN)

### January is typically the cheapest month to fly

From CA $471 - CA $1,217 per traveller.

Flight from Boston to Sun Valley (BOS - SUN) route information

| Origin airport | Logan Intl. |
| --- | --- |
| Destination airport | Friedman Memorial |
| Distance | 3465 km |

## Boston to Hailey Flights

**The easy way to book your flights from Boston to Sun Valley** 

With Expedia, it’s simple to find and book flights to Sun Valley 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 Friedman Memorial, 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 Sun Valley today, tomorrow, or this week.  

**Save dollars with cheap flights from Logan Intl., BOS to Friedman Memorial, SUN** 

Sort your search results by price to find great deals on your flight from Boston to Sun Valley—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sun Valley 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 Sun Valley  
-   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 Sun Valley 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. So book your flight to Sun Valley with Expedia today.

## Frequently asked questions

### How much is a flight from Logan Intl. Airport (BOS) to Friedman Memorial Airport?

> Round-trip tickets from Logan Intl. Airport (BOS) to Friedman Memorial Airport (SUN) start from . This is based on fares available within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. 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 Friedman Memorial Airport (SUN)?

> Most flights can be cancelled online, but each airline has a different set of terms and conditions. If you do decide to cancel your flight, check out our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions.

### How do I find cheap flights from Logan Intl. Airport (BOS) to Friedman Memorial Airport that have flexible change policies?

> Many carriers offer the option to move your flight without charging a fee. All you pay is the cost difference between flights. When searching for Logan Intl. Airport to Friedman Memorial Airport flights, you'll find a "No change fees" filter for you to pick.

### How many hours is the flight from Logan Intl. Airport to Friedman Memorial Airport?

> You may like to bring your own on-board entertainment, as it takes an average of 8 hours and 6 minutes to jet to Friedman Memorial Airport (SUN) from Logan Intl. Airport. A pair of noise-cancelling headphones will be useful too.

### How far is the flight from Logan Intl. Airport (BOS) to Friedman Memorial Airport?

> The flight distance from Boston to Hailey is 3,500 kilometres. Bring a drink, a snack and an interesting novel to read. Keep yourself occupied and the hours will zip by.

### Which airlines fly direct from BOS to Friedman Memorial Airport (SUN)?

> You won't find any airlines flying directly between Logan Intl. Airport and Friedman Memorial Airport, so be ready to make at least one stop on your journey. A layover can be a welcome way to break up a trip!

### Are Logan Intl. Airport to Friedman Memorial Airport flight tickets cheaper when they're purchased at the last minute?

> Tickets from Logan Intl. Airport to Friedman Memorial Airport (SUN) are available up to 12 months prior to departure on Expedia. And although you may occasionally 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 ending up with the dreaded middle seat! We're always updating our fares to bring you the best bargains, so check back often for all the latest specials.

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