Cheap Flights from Baltimore Washington International to Idaho Falls

Return selected

origin

Enter the city you're flying from, or choose from the options below

Include nearby airports

selected

destination

. Enter your destination, or choose from the options below

Include nearby airports

selected

Travellers and cabin class, 1 Adult, Economy

Compare Baltimore Washington International to Idaho Falls flight deals

Find the cheapest month or even day of the year to fly to Idaho Falls

Book the best Idaho Falls fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Baltimore Washington International to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to Idaho Falls Airport? If you want to travel next month, return fares start from $755. Find the lowest prices on one-way and return tickets right here.

Idaho Falls.$669 per passenger.Departing Fri, 5 Mar, returning Sun, 7 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 5 Mar, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Sun, 7 Mar, arriving in Baltimore Washington International.Price includes taxes and charges.From $669, select.

Idaho Falls.$727 per passenger.Departing Tue, 30 Mar, returning Tue, 6 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 30 Mar, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Tue, 6 Apr, arriving in Baltimore Washington International.Price includes taxes and charges.From $727, select.

Idaho Falls.$727 per passenger.Departing Thu, 6 May, returning Sun, 9 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Thu, 6 May, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Sun, 9 May, arriving in Baltimore Washington International.Price includes taxes and charges.From $727, select.

Idaho Falls.$755 per passenger.Departing Fri, 13 Nov, returning Sun, 15 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 13 Nov, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Sun, 15 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $755, select.

Idaho Falls.$802 per passenger.Departing Thu, 15 Oct, returning Mon, 19 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Thu, 15 Oct, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Mon, 19 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $802, select.

Idaho Falls.$878 per passenger.Departing Tue, 1 Dec, returning Sat, 5 Dec.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Tue, 1 Dec, arriving in Idaho Falls.Inbound indirect flight with United, departs from Idaho Falls on Sat, 5 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From $878, select.

Idaho Falls.$887 per passenger.Departing Fri, 30 Oct, returning Sat, 7 Nov.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Fri, 30 Oct, arriving in Idaho Falls.Inbound indirect flight with United, departs from Idaho Falls on Sat, 7 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From $887, select.

Find the cheapest month to fly from Baltimore Washington International to Idaho Falls

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to Idaho Falls flights are currently cheapest in March.

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Baltimore Washington International to Idaho Falls: Alternative routes

Compare routes from Baltimore Washington International to Idaho Falls below. You may find an airport to fly into that's cheaper, faster, or easier than Idaho Falls.

Idaho Falls

4km from central Idaho Falls

ClosestCheapest

from $669

Search flights

Pocatello

79km from central Idaho Falls

from $963

Search flights

Washington D.C. to Idaho Falls: Flight information

The things to know before you go.

Cheapest flight found	$669
Cheapest month to fly	March

Finding cheap flights from Baltimore Washington International to Idaho Falls: Frequently asked questions

How much are return flights from Baltimore Washington International to Idaho Falls?

The best price we found for a return flight from Baltimore Washington International to Idaho Falls is $669. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Baltimore Washington International to Idaho Falls?

Currently, there are no airlines that fly direct from Baltimore Washington International to Idaho Falls. But we found flights with one or more stops from $669.

How many flights are there a week from Baltimore Washington International to Idaho Falls?

As of October 2026, there are no flights flying from Baltimore Washington International to Idaho Falls.

When is the cheapest time to fly from Baltimore Washington International to Idaho Falls?

The cheapest month to fly from Baltimore Washington International to Idaho Falls is usually March.

Which upcoming date is cheapest to fly from Baltimore Washington International Airport to Idaho Falls Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to Idaho Falls Airport on Friday, 5 March 2027.

Can I get a direct flight from Baltimore Washington International Airport to Idaho Falls Airport?

No airlines currently offer direct flights between Baltimore Washington International Airport and Idaho Falls Airport. Most routes have one or more stops.

How can I find the best flight deal to Idaho Falls?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Idaho Falls but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Idaho Falls?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Baltimore Washington International Airport to Idaho Falls with?

Currently, Delta offers the cheapest flight tickets to Idaho Falls.

Flying from Baltimore Washington International Airport (BWI) to Idaho Falls Airport (IDA): what you need to know

Leave enough time to catch your BWI to IDA flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.
You can expect longer lines during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a wise move.
We make it easy to book a flight with a stopover. To see all your options for tickets from Baltimore Washington International Airport to Idaho Falls Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to tour your chosen city. Popular stopovers between BWI and IDA include:
- Dallas Fort Worth International Airport
- Denver International Airport
- Salt Lake City Airport

How to find the cheapest flights from Baltimore Washington International Airport (BWI) to Idaho Falls Airport (IDA)

$334 is the lowest price for a one-way Baltimore Washington International Airport to Idaho Falls Airport flight. Return flights start from $669. These fares can change depending on availability.
To find cheap tickets from BWI to IDA, book as early as you can. Airlines usually offer their most competitively priced fares when flights are first released.
If you're flexible with your trip dates, try using the 'Whole month' tool. It'll show you the lowest price across each month when looking for a flight from Baltimore Washington International Airport to Idaho Falls Airport.
Landing cheap flights from BWI to IDA is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when fares go down.
Tailor your trip with filters. Choose your preferred departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Baltimore Washington International Airport to Idaho Falls Airport.

Handy information about Baltimore Washington International Airport (BWI)

Of all flights departing from Baltimore Washington International Airport, 77% arrive as scheduled at their destination.
Baltimore Washington International Airport is around 48 kilometres from central Washington DC. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 40 minutes or so to get there, depending on the traffic.
The trip when using public transport will take about 50 minutes.
Get your holiday off to a relaxed start by staying near BWI. Whether you're catching an early flight from Baltimore Washington International Airport to Idaho Falls Airport or just don't like being rushed, these stays are perfect:

Arriving at Idaho Falls Airport (IDA)

Book a hotel close to IDA if you're catching a late Baltimore Washington International Airport to Idaho Falls Airport flight. Check in to one of these accommodation options and skip the long transfer after landing:
Get your adventure underway by picking up a Idaho Falls Airport rental car. Grab your wheels from Budget, Avis or Alamo and explore beyond Idaho Falls's main sights.
Book your ride from Idaho Falls Airport a few weeks before your departure date to get the best deal. If you're going away during peak season, it's a smart idea to book even earlier.

Getting from Idaho Falls Airport (IDA) to central Idaho Falls

IDA is located at 2140 North Skyline.
Idaho Falls Airport is approximately 8 kilometres from central Idaho Falls. The drive time takes around 10 minutes.
It'll take around 30 minutes if you're using public transport.

When to fly to Idaho Falls Airport (IDA)

The quietest month for a flight from Baltimore Washington International Airport to Idaho Falls Airport is March, while June is the busiest. Choose the best time to visit Idaho Falls based on whether you prefer a more fast-paced or easygoing experience.
The warmest month in Idaho Falls is July, with temperatures ranging between 9ºC and 35ºC. Book your flights from Baltimore Washington International Airport to Idaho Falls Airport in this month if this is the type of weather you enjoy.
Search for cheap tickets from BWI to IDA in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -15ºC and 1ºC on average.

Explore more of the United States

Salt Lake City is just one of the many places in the United States waiting to be explored once you've taken in the sights of Idaho Falls. Around 306 kilometres away to the south, well-known attractions include Salt Lake Utah Temple, Temple Square and Salt Lake City Tabernacle.
If you're looking to explore another great destination in the United States, head for Boise, about 338 kilometres west of Idaho Falls. Cathedral Of The Rockies, Boise Depot and St. John's Cathedral are key reasons to visit.