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$201 Cheap Flights from Sun Valley (SUN) to Boston (BOS)

View $201 flight on Tue, Aug 11, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $201 for one-way flights and $401 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Sep 3 - Mon, Sep 7
SUN
Sun Valley
BOS
Boston
$401 Roundtrip, found 3 days ago
$401
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Sep 3 from Sun Valley to Boston, returning Mon, Sep 7, priced at $401 found 3 days ago
Delta
Fri, Aug 28 - Sun, Aug 30
SUN
Sun Valley
BOS
Boston
$406 Roundtrip, found 6 days ago
$406
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Aug 28 from Sun Valley to Boston, returning Sun, Aug 30, priced at $406 found 6 days ago
United
Wed, Aug 12 - Fri, Aug 14
SUN
Sun Valley
BOS
Boston
$423 Roundtrip, found 4 days ago
$423
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 12 from Sun Valley to Boston, returning Fri, Aug 14, priced at $423 found 4 days ago
United
Wed, Aug 12 - Fri, Aug 14
SUN
Sun Valley
BOS
Boston
$430 Roundtrip, found 4 days ago
$430
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 12 from Sun Valley to Boston, returning Fri, Aug 14, priced at $430 found 4 days ago
Delta
Sat, Sep 19 - Wed, Sep 23
SUN
Sun Valley
BOS
Boston
$435 Roundtrip, found 5 days ago
$435
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 19 from Sun Valley to Boston, returning Wed, Sep 23, priced at $435 found 5 days ago
United
Thu, Aug 20 - Sat, Aug 29
SUN
Sun Valley
BOS
Boston
$446 Roundtrip, found 4 days ago
$446
Roundtrip
found 4 days ago
Select United flight, departing Thu, Aug 20 from Sun Valley to Boston, returning Sat, Aug 29, priced at $446 found 4 days ago
United
Wed, Aug 12 - Fri, Aug 14
SUN
Sun Valley
BOS
Boston
$452 Roundtrip, found 4 days ago
$452
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 12 from Sun Valley to Boston, returning Fri, Aug 14, priced at $452 found 4 days ago
Delta
Thu, Sep 3 - Mon, Sep 7
SUN
Sun Valley
BOS
Boston
$456 Roundtrip, found 3 days ago
$456
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Sep 3 from Sun Valley to Boston, returning Mon, Sep 7, priced at $456 found 3 days ago
United
Wed, Aug 12 - Fri, Aug 14
SUN
Sun Valley
BOS
Boston
$457 Roundtrip, found 4 days ago
$457
Roundtrip
found 4 days ago
Select United flight, departing Wed, Aug 12 from Sun Valley to Boston, returning Fri, Aug 14, priced at $457 found 4 days ago
Alaska Airlines
Fri, Oct 16 - Sat, Oct 17
SUN
Sun Valley
BOS
Boston
$459 Roundtrip, found 4 days ago
$459
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Oct 16 from Sun Valley to Boston, returning Sat, Oct 17, priced at $459 found 4 days ago

Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $580
BOS
Logan Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $580

What you need to know for your flight from Friedman Memorial to Logan Intl.

Sun Valley (SUN) to Boston (BOS) at a glance

Explore a range of airlines offering flights from Sun Valley (SUN) to Boston (BOS) on this short domestic route. Review options from full-service carriers to discover the best airfares for Sun Valley that align with your budget and schedule. As you prepare to visit Boston's iconic attractions and neighborhoods, find essential information for tickets from Sun Valley to ensure a smooth journey from Friedman Memorial Airport (SUN) to Logan International Airport (BOS).

  • Fastest flight duration: around 6 hours in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 2,200 miles (3,540 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $170–$640, depending on seasonality and how far ahead you book

Flights from Friedman Memorial Airport (SUN) to Logan International Airport (BOS)

Based on recent traveler bookings, here are the top airlines favored for flights from Sun Valley to Boston, typically selected for their one-stop services. Popular layover options include Salt Lake City International Airport (SLC) with a layover of about 1 hour and 15 minutes, O'Hare International Airport (ORD) with a 1 hour and 30 minutes layover, and Denver International Airport (DEN) also with a 1 hour and 15 minutes layover. These choices allow you to tailor your itinerary based on price, total travel time, and cabin class.

  • Delta: This major carrier provides comprehensive service with one-stop options. One-way ticket prices generally fall between $170 and $1380. Delta represents about 45% of departures on this route, featuring an in-flight duration of 6 hours and a total travel time of approximately 7 hours and 15 minutes, including layovers.
  • United: A prominent full-service airline, United offers one-stop flights with one-way fares that typically range from $175 to $705. It accounts for around 35% of departures on this route, with a flight time of 6 hours and a complete journey taking about 7 hours and 15 minutes, including layovers.
  • American Airlines: This well-established carrier provides one-stop service, with one-way fares usually ranging from $170 to $575. American Airlines makes up about 13% of the flights on this route, featuring an in-flight time of 6 hours and a total travel time of around 7 hours and 15 minutes, accounting for layovers.
  • Alaska Airlines: Known for its full-service offerings, Alaska Airlines provides one-stop flights with one-way fares typically ranging from $210 to $1175. It has approximately 7% of the departures on this route, with a flight time of 6 hours and an overall journey duration of roughly 7 hours and 15 minutes, including layovers.

Travelers can enhance their journey from Sun Valley to Boston with an upgrade, as Delta provides first-class service on this route.

Alternative routes from Sun Valley (SUN) to Boston (BOS)

  • Challis to Boston (CHL-BOS): Located approximately 70 miles from Friedman Memorial Airport (SUN), Challis Airport (CHL) serves as a convenient departure point for travelers heading to Boston.
  • Twin Falls to Boston (TWF-BOS): Twin Falls Airport (TWF) is roughly 71 miles from Friedman Memorial Airport (SUN), making it a viable option for those flying to Boston.
  • Challis to Bedford (CHL-BED): Challis Airport (CHL) is about 70 miles from Friedman Memorial Airport (SUN), while Laurence G. Hanscom Field Airport (BED) lies roughly 15 miles from Logan International Airport (BOS).

How to find the best prices for flights from Sun Valley (SUN) to Boston (BOS)

Getting some of the best deals on flights from Sun Valley to Boston is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which aligns with when most travelers make their reservations. Afternoon departures from 12 PM to 6 PM often provide lower prices and are also the most sought-after times. Additionally, flying on Monday typically results in cheaper fares, although Friday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Logan International Airport from Friedman Memorial Airport

Boston welcomes travelers from Sun Valley with a range of transport options based on price, convenience, and proximity. For departures, Friedman Memorial Airport is roughly a 30-minute drive (covering about 18 miles) from central Sun Valley. Here's how to reach Boston efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Boston, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Logan International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Logan International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Logan International Airport, several transport options are conveniently accessible by car. Airport Station, a metro station, is located about 0.9 miles from the airport, while Chelsea Station, a train station, is about 2.8 miles away. If you're heading to the waterfront, Boston Seaport, a seaport, is situated about 3.1 miles from the airport.

Frequently asked questions

How much does a flight from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) cost?
You can find cheap one-way flights from $201 and cheap return flights from $401 Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) with Expedia. One-way flights typically cost between $145 and $1213, and return flights often range between $490 and $2003. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
The cheapest month to fly from SUN to BOS is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
Enter SUN to BOS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
To find a cheap flight from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
The earliest flight from Sun Valley, ID (SUN) to Boston, MA (BOS) usually leaves at around 7:00 AM, operated by United and Alaska Airlines. This seasonal service is available in October, helping you make the most of your time in Boston. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
The most popular departure times for flights from Sun Valley (SUN) to Boston (BOS) are in the early afternoon, from 12pm to 3pm. About 42% of passengers prefer this time window. Many major carriers, including Delta Air Lines and American Airlines, offer flights during this window. This timing works well because it allows you to enjoy a leisurely morning before heading to the airport.
How long does it take to fly from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
Flights from SUN to BOS with one stop typically take around 7 hours 20 minutes, covering approximately 2,166 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
You can fly first class between SUN and BOS. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) flight with Expedia?
It's easy to earn miles on a Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Boston from Friedman Memorial (SUN)?
From Friedman Memorial (SUN), you can fly into Logan Intl. (BOS) to reach Boston. Some flights may connect through major hubs like Denver Intl. (DEN), Seattle - Tacoma Intl. (SEA), Salt Lake City Intl. (SLC) before reaching Boston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) at the last minute?
Typically, booking a last minute flight from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) flight and hotel package?
Securing a Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) Boston Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.)?
If you booked your Sun Valley, ID (SUN-Friedman Memorial) to Boston, MA (BOS-Logan Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Friedman Memorial
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$400
Distance
2165 mi

Book with confidence

Sun Valley to Boston Flights

The cheapest times to fly from Sun Valley to Boston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sun Valley to Boston are during the month of September. You can find some of the cheapest flights from Sun Valley to Boston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sun Valley to Boston

Sunday is one of the best days to book for cheap flights from Sun Valley to Boston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sun Valley to Boston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sun Valley to Boston in 2026. You can also book with separate airlines for your outbound and return journeys, from $201 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sun Valley to Boston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sun Valley to Boston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Sun Valley to Boston Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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