$255 Cheap Flights from Baltimore (BWI) to Sun Valley (SUN)

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.

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 January. 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 $255 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.