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$230 Cheap Flights from Baltimore (BWI) to Sun Valley (SUN)

View $230 flight on Sat, Jan 23, 2027Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Sun Valley, ID (SUN-Friedman Memorial)

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Cheap Flights from Baltimore to Sun Valley (BWI-SUN)

Prices were available within the past 7 days and start at $230 for one-way flights and $469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Feb 19 - Wed, Feb 24
BWI
Baltimore
SUN
Sun Valley
$469 Roundtrip, found 1 day ago
$469
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Feb 19 from Baltimore to Sun Valley, returning Wed, Feb 24, priced at $469 found 1 day ago
United
Wed, Oct 14 - Fri, Oct 16
BWI
Baltimore
SUN
Sun Valley
$469 Roundtrip, found 1 day ago
$469
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 14 from Baltimore to Sun Valley, returning Fri, Oct 16, priced at $469 found 1 day ago
Delta
Thu, Dec 10 - Mon, Dec 14
BWI
Baltimore
SUN
Sun Valley
$474 Roundtrip, found 1 day ago
$474
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Dec 10 from Baltimore to Sun Valley, returning Mon, Dec 14, priced at $474 found 1 day ago
Delta
Thu, Dec 10 - Mon, Dec 14
BWI
Baltimore
SUN
Sun Valley
$484 Roundtrip, found 1 day ago
$484
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Dec 10 from Baltimore to Sun Valley, returning Mon, Dec 14, priced at $484 found 1 day ago
Delta
Wed, Oct 14 - Fri, Oct 16
BWI
Baltimore
SUN
Sun Valley
$488 Roundtrip, found 1 day ago
$488
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 14 from Baltimore to Sun Valley, returning Fri, Oct 16, priced at $488 found 1 day ago
Alaska Airlines
Fri, Oct 2 - Tue, Oct 6
BWI
Baltimore
SUN
Sun Valley
$489 Roundtrip, found 5 hours ago
$489
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Fri, Oct 2 from Baltimore to Sun Valley, returning Tue, Oct 6, priced at $489 found 5 hours ago
Delta
Fri, Oct 2 - Tue, Oct 6
BWI
Baltimore
SUN
Sun Valley
$494 Roundtrip, found 5 hours ago
$494
Roundtrip
found 5 hours ago
Select Delta flight, departing Fri, Oct 2 from Baltimore to Sun Valley, returning Tue, Oct 6, priced at $494 found 5 hours ago
United
Fri, Feb 19 - Wed, Feb 24
BWI
Baltimore
SUN
Sun Valley
$500 Roundtrip, found 1 day ago
$500
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 19 from Baltimore to Sun Valley, returning Wed, Feb 24, priced at $500 found 1 day ago
United
Thu, Oct 22 - Sun, Oct 25
BWI
Baltimore
SUN
Sun Valley
$504 Roundtrip, found 1 day ago
$504
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 22 from Baltimore to Sun Valley, returning Sun, Oct 25, priced at $504 found 1 day ago
Delta
Fri, Feb 19 - Wed, Feb 24
BWI
Baltimore
SUN
Sun Valley
$519 Roundtrip, found 1 day ago
$519
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Feb 19 from Baltimore to Sun Valley, returning Wed, Feb 24, priced at $519 found 1 day ago

Alternative airports near Sun Valley

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

Select flight to Friedman Memorial SUN. Cheapest and Closest option available. Average driving time to city center is 23 minutes. Flights from $823
SUN
Friedman Memorial
CheapestClosest
Average driving time to city center23 min
Flights from $823

What you need to know for your flight from Baltimore Washington Intl. Thurgood Marshall to Friedman Memorial

Baltimore (BWI) to Sun Valley (SUN) at a glance

Traveling from Baltimore (BWI) to Sun Valley (SUN) offers a range of airlines to choose from on this domestic short-haul route. Compare various options from full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel aspirations as you set out to explore the iconic sights and neighborhoods of Sun Valley. Get all the essential information for flights departing from Baltimore Washington International Thurgood Marshall Airport (BWI) to Friedman Memorial Airport (SUN).

  • Fastest flight duration: around 6h 15m in-flight, plus roughly 1 hour layover with one stop
  • Route distance: roughly 2,000 miles (3,220 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $170–$550, depending on seasonality and how far ahead you book

Flights from Baltimore Washington International Thurgood Marshall Airport (BWI) to Friedman Memorial Airport (SUN)

According to recent traveler bookings, the leading airlines flying from Baltimore to Sun Valley are frequently selected for their one-stop services. Popular layovers include Denver International Airport (DEN) with a 50-minute connection, Salt Lake City International Airport (SLC) offering about an hour, and Los Angeles International Airport (LAX) also featuring a 50-minute stop. These options allow you to balance price, total travel time, and cabin class, helping you to create the ideal itinerary for your journey.

  • United: This full-service airline provides one-stop flights, with one-way ticket prices generally falling between $185 and $550. United operates about 55% of the flights on this route, offering an in-flight duration of 6 hours and 15 minutes, and a total travel time of approximately 7 hours and 15 minutes, including layover time.
  • Delta: Another full-service option, Delta offers one-stop flights with typical one-way fares ranging from $170 to $745. Delta is responsible for around 42% of the departures on this route, featuring an in-flight time of 6 hours and 15 minutes and a complete journey lasting about 7 hours and 15 minutes, factoring in the layover.

Alternative route from Baltimore (BWI) to Sun Valley (SUN)

  • Washington to Sun Valley (DCA-SUN): Ronald Reagan Washington National Airport (DCA) lies approximately 30 miles from Baltimore Washington International Thurgood Marshall Airport (BWI). One-way economy prices for this journey generally fall between $145 and $780, influenced by the season and advance booking. Typically, this route is served by one-stop flights, with common layover points at O'Hare International Airport (ORD) and Salt Lake City International Airport (SLC). Major airlines operating on this route include United and Delta. Additionally, first-class service is offered for travelers seeking a more premium experience.

How to find the best prices for flights from Baltimore (BWI) to Sun Valley (SUN)

Getting some of the best deals on flights from Baltimore to Sun Valley 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. Morning departures between 5 am and 12 pm not only tend to be less expensive but are also the most popular. Additionally, flying on Tuesday generally results in lower prices, while Thursday remains the busiest 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.* Find Sun Valley hotel and flight deals.
  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 Friedman Memorial Airport from Baltimore Washington International Thurgood Marshall Airport

Sun Valley welcomes travelers from Baltimore with a range of transport options based on price, convenience, and proximity. Sun Valley city center is approximately a 30-minute drive (covering about 18 miles) from Friedman Memorial Airport, depending on traffic. Here's how to reach Sun Valley efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Sun Valley, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Friedman Memorial Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Friedman Memorial 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.

Frequently asked questions

How much does a flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) cost?
You can find cheap one-way flights from $230 and cheap return flights from $469 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) with Expedia. One-way flights usually range from $479 to $1771, and return flights typically cost between $461 and $1617. 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
The cheapest month to fly from BWI to SUN is February 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
Enter BWI to SUN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
American Airlines is one of the cheapest airlines offering connecting flights from Baltimore, MD (BWI) to Sun Valley, ID (SUN), with round-trip tickets starting from around $345.56 with a layover in Charlotte-Douglas Intl. (CLT). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
To find a cheap flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial), 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
The earliest flight from Baltimore Washington International Thurgood Marshall Airport (BWI) to Friedman Memorial Airport (SUN) in Sun Valley typically departs at around 5:00 AM, operated by American Airlines. An early departure like this allows you to enjoy a full day in Sun Valley upon arrival. 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
For flights from Baltimore (BWI) to Sun Valley (SUN), the most popular departure times are in the early morning, from 6am to 9am. About 74% of passengers prefer this time window. Many major carriers, including United Airlines and Delta, offer flights during this window. This timing is favored as it allows travelers to arrive in Sun Valley with plenty of time to enjoy the day.
How long does it take to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
A flight from BWI to SUN with a layover takes around 7 hours 20 minutes, with the route covering approximately 1,958 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
You can fly first class between BWI and SUN. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) flight with Expedia?
It's easy to earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) 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 Sun Valley from Baltimore Washington Intl. Thurgood Marshall (BWI)?
From Baltimore Washington Intl. Thurgood Marshall (BWI), you can fly into Friedman Memorial (SUN) to reach Sun Valley. Some flights may connect through major hubs like O'Hare Intl. (ORD), Denver Intl. (DEN), Seattle - Tacoma Intl. (SEA) before reaching Sun Valley. 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) at the last minute?
Typically, booking a last minute flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) flight and hotel package?
Securing a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) flight and hotel package 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial)?
If you booked your Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Sun Valley, ID (SUN-Friedman Memorial) 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
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$468
Distance
1957 mi

Book with confidence

Baltimore to Sun Valley Flights

The cheapest times to fly from Baltimore to Sun Valley

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 Baltimore to Sun Valley are during the month of February. You can find some of the cheapest flights from Baltimore to Sun Valley with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Baltimore to Sun Valley: 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 Baltimore to Sun Valley

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 Baltimore to Sun Valley in 2026. You can also book with separate airlines for your outbound and return journeys, from $230 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 Baltimore to Sun Valley 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 Baltimore to Sun Valley 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.

 

Baltimore to Sun Valley Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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