$198 Cheap Flights from Idaho Falls (IDA) to Baltimore (BWI)

View $198 flight on Sat, Apr 25, 2026Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Airport (BWI)

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Cheap Flights from Idaho Falls to Baltimore (IDA-BWI)

Prices were available within the past 7 days and start at $198 for one-way flights and $396 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Apr 15 - Wed, Apr 22
IDA
Idaho Falls
BWI
Baltimore
$396 Roundtrip, found 6 hours ago
$396
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, Apr 15 from Idaho Falls to Baltimore, returning Wed, Apr 22, priced at $396 found 6 hours ago
Delta
Tue, Apr 21 - Tue, Apr 28
IDA
Idaho Falls
BWI
Baltimore
$397 Roundtrip, found 6 hours ago
$397
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Apr 21 from Idaho Falls to Baltimore, returning Tue, Apr 28, priced at $397 found 6 hours ago
Delta
Tue, Apr 21 - Sat, Apr 25
IDA
Idaho Falls
BWI
Baltimore
$402 Roundtrip, found 4 days ago
$402
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Apr 21 from Idaho Falls to Baltimore, returning Sat, Apr 25, priced at $402 found 4 days ago
Hawaiian Airlines
Sat, Dec 6 - Tue, Dec 9
IDA
Idaho Falls
BWI
Baltimore
$403 Roundtrip, found 1 day ago
$403
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Idaho Falls to Baltimore, returning Tue, Dec 9, priced at $403 found 1 day ago
Delta
Fri, Apr 24 - Sat, Apr 25
IDA
Idaho Falls
BWI
Baltimore
$408 Roundtrip, found 4 days ago
$408
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Apr 24 from Idaho Falls to Baltimore, returning Sat, Apr 25, priced at $408 found 4 days ago
Hawaiian Airlines
Wed, Dec 3 - Sat, Dec 6
IDA
Idaho Falls
BWI
Baltimore
$411 Roundtrip, found 1 day ago
$411
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Idaho Falls to Baltimore, returning Sat, Dec 6, priced at $411 found 1 day ago
United
Sat, Apr 18 - Sat, Apr 25
IDA
Idaho Falls
BWI
Baltimore
$412 Roundtrip, found 6 hours ago
$412
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Apr 18 from Idaho Falls to Baltimore, returning Sat, Apr 25, priced at $412 found 6 hours ago
Hawaiian Airlines
Sat, Dec 6 - Sat, Dec 13
IDA
Idaho Falls
BWI
Baltimore
$413 Roundtrip, found 1 day ago
$413
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Idaho Falls to Baltimore, returning Sat, Dec 13, priced at $413 found 1 day ago
Delta
Mon, Mar 2 - Wed, Mar 18
IDA
Idaho Falls
BWI
Baltimore
$414 Roundtrip, found 4 days ago
$414
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 2 from Idaho Falls to Baltimore, returning Wed, Mar 18, priced at $414 found 4 days ago
American Airlines
Thu, Jan 15 - Sun, Jan 18
IDA
Idaho Falls
BWI
Baltimore
$421 Roundtrip, found 2 days ago
$421
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Jan 15 from Idaho Falls to Baltimore, returning Sun, Jan 18, priced at $421 found 2 days ago

Alternative airports near Baltimore

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

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $586
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $586

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Grab a cheap one-way flight from $198 or cheap return flight from $396 from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
April is the most affordable month to fly from IDA to BWI. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IDA to BWI flight.
How many flights per day from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
There aren't any daily nonstop flights available from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from IDA to BWI?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To avoid possible delays on the Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) route, fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Booking your plane ticket from IDA to BWI just before your getaway is usually more expensive. However, if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book an IDA to BWI flight and hotel package?
Compared with arranging flights and hotels separately, booking an IDA to BWI flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place takes the hassle out of planning your trip. Just pick your flights and choose from our extensive range of stays, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Typically, you can reschedule or cancel your IDA to BWI flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further details, visit our Customer Service portal.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$396
Distance
1846 mi

Book with confidence

Idaho Falls to Baltimore Flights

The cheapest times to fly from Idaho Falls to Baltimore

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

 

The best time to book a flight from Idaho Falls to Baltimore

Sunday is one of the best days to book for cheap flights from Idaho Falls to Baltimore: 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 Idaho Falls to Baltimore

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 Idaho Falls to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $198 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 Idaho Falls to Baltimore 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 Idaho Falls to Baltimore 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.

 

Idaho Falls to Baltimore Flights

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