Cheap flights from Idaho Falls to Washington, D.C. from £170

Cheap flights from Idaho Falls to Washington, D.C. from £170

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2 stops
Mon, Jun 15
Idaho Falls IDAWashington, D.C. BWI
£170
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1 stop
Mon, Jun 15
Idaho Falls IDAWashington, D.C. IAD
£231
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1 stop
Mon, Jun 15
Idaho Falls IDAWashington, D.C. IAD
£231
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1 stop
Fri, Jun 12
Idaho Falls IDAWashington, D.C. IAD
£231
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1 stop
Thu, Jun 11
Idaho Falls IDAWashington, D.C. IAD
£255
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1 stop
Mon, Jun 15
Idaho Falls IDAWashington, D.C. BWI
£260
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2 stops
Mon, Jun 15 – Fri, Jun 19
Idaho Falls IDAWashington, D.C. BWI
£452
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2 stops
Mon, Jun 15 – Fri, Jun 19
Idaho Falls IDAWashington, D.C. IAD
£465
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2 stops
Mon, Jun 15 – Sun, Jun 21
Idaho Falls IDAWashington, D.C. BWI
£487
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1 stop
Mon, Jun 15 – Wed, Jun 17
Idaho Falls IDAWashington, D.C. IAD
£614
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1 stop
Tue, Jun 9 – Thu, Jun 11
Idaho Falls IDAWashington, D.C. IAD
£622
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1 stop
Tue, Jun 9 – Sat, Jun 13
Idaho Falls IDAWashington, D.C. IAD
£622
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How much do flights to Washington, D.C. cost?

Cheapest one-way trip

£170

Cheapest round-trip

£452

Includes rare itinerary

Travel hack

Most popular airline

Allegiant Air

Getting from Washington, D.C. airports to the city center

Fastest options: Metro from DCA. Best value: Metro and bus services from all airports.

Washington, D.C. is served by three major airports, each offering various airport transfers to city center destinations. Ronald Reagan Washington National Airport (DCA) is the closest, located just 6 km south of downtown across the Potomac River. Washington Dulles International Airport (IAD) lies 42 km west of the city center in Virginia. Baltimore/Washington International Thurgood Marshall Airport (BWI) is 50 km northeast in Maryland. Transport options include Metro rail, commuter trains, express buses, taxis, ride-hailing services, and private transfers. Journey times and costs vary depending on the airport, time of day, and traffic conditions.

How to get from Ronald Reagan Washington National Airport (DCA) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

15-20 min

varies by destination and time of day

every 8–12 min (traffic dependent)

fastest and most affordable

15-30 min

metered; varies by traffic

on-demand 24/7 (traffic dependent)

door-to-door convenience

How to get from Washington Dulles International Airport (IAD) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

45-60 min

flat fare to downtown

every 8–15 min (traffic dependent)

budget travelers

20-30 min

to Wiehle-Reston East Metro

every 20 min (traffic dependent)

connecting to Metro

45-75 min

metered; varies by traffic

on-demand 24/7 (traffic dependent)

groups with luggage

How to get from Baltimore/Washington International Thurgood Marshall Airport (BWI) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

35-45 min

one-way fare

hourly weekdays (traffic dependent)

commuters to Union Station

30-40 min

varies by train type and booking time

multiple daily (traffic dependent)

comfort and speed

50-90 min

metered; varies by traffic

on-demand 24/7 (traffic dependent)

late night arrivals

Notes:

  • Prices in USD; table created in 2025 and subject to change.
  • Metro fares vary by distance and time of day; use SmarTrip card for best rates.
  • MARC trains operate primarily on weekdays with limited weekend service.
  • Taxi and ride-hailing prices vary with demand and traffic conditions.
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

Key info about flying to Washington, D.C.

Depart from
Idaho Falls Regional
Arrive to
Washington Dulles International
Average flights per week
181
Flight distance
Worth visiting
Lincoln Memorial - National Mall

Check-in for a flight from Idaho Falls to Washington, D.C.

NameCarrier codeIATA CodePassport needed during booking
Allegiant AirAAYG4No
Frontier AirlinesFFTF9No
Alaska AirlinesASAASNo
United AirlinesUALUANo
JetBlue AirwaysJBUB6No

Online check-in is not available for these airlines.

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-2°C
February7°C0°C
March13°C3°C
April19°C8°C
May23°C13°C
June29°C18°C
July32°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C5°C
December8°C1°C
Hottest Month
32°C
July
Coldest month
-2°C
January
Sunny days
266
days per year
Snow days
8
days per year

14 day forecast

Sunday
24 May
79%
22°C12°C
31 May
22°C12°C
Monday
25 May
88%
22°C17°C
1 Jun
25°C11°C
Tuesday
26 May
85%
20°C17°C
2 Jun
27°C15°C
Wednesday
27 May
29°C16°C
3 Jun
28°C13°C
Thursday
28 May
81%
27°C19°C
4 Jun
30°C14°C
Friday
29 May
23°C14°C
5 Jun
31°C16°C
Saturday
30 May
18°C11°C
6 Jun
33°C17°C
Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The most popular airlines for this route are Allegiant Air, Frontier Airlines, Alaska Airlines, United Airlines, and JetBlue Airways. Idaho Falls and Washington, D.C. have 181 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, and National Mall.

Frequently asked questions

What are the most popular routes to and from Idaho Falls?
Travelers frequently search for route combinations, such as Idaho Falls and Phoenix, Portland, Las Vegas, Santa Ana, Guadalajara, Los Angeles, Fort Lauderdale, Atlanta, Sharm El Sheikh, Mazatlán, Kauai, Lima, Venice, Odessa, Stockton, Brisbane, Spokane, Vancouver, Nice, Lyon.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and London, Manchester, Atlanta, Los Angeles, Orlando, Edinburgh, Glasgow, Mexico City, Dallas, Aberdeen, Tampa, Toronto, San Francisco, Denver, Boston, Houston, San Salvador, Lima, Miami, Las Vegas.
What airports are near Idaho Falls?
The main airport in Idaho Falls is Idaho Falls Regional. It is also served by Idaho Falls Regional, Jackson Hole, Magic Valley Regional, Friedman Memorial, Yellowstone, Pocatello Regional.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Atlantic City International, Richmond International, Trenton–Mercer, Lehigh Valley International, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Lancaster, Altoona–Blair County.
Which airlines fly between Idaho Falls and Washington, D.C.?
Currently, you can fly between Idaho Falls and Washington, D.C. with Allegiant Air, Frontier Airlines, Alaska Airlines, United Airlines, JetBlue Airways.
When’s the best time to travel between Idaho Falls and Washington, D.C.?
If you don’t have specific dates for your trip between Idaho Falls and Washington, D.C., you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between Idaho Falls and Washington, D.C.?
Traveling between Idaho Falls and Washington, D.C., you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near Idaho Falls?
There are a number of airports in and around Idaho Falls. The main one is Idaho Falls Regional and other nearby airports include Idaho Falls Regional, Jackson Hole, Magic Valley Regional, Friedman Memorial, Yellowstone, Pocatello Regional
How many airports are there near Washington, D.C.?
There are a number of airports in and around Washington, D.C.. The main one is Washington Dulles International and other nearby airports include Philadelphia International, Norfolk International, Atlantic City International, Richmond International, Trenton–Mercer, Lehigh Valley International, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Lancaster, Altoona–Blair County.
What time do nonstop (direct) flights between Idaho Falls and Washington, D.C. depart?
What time do nonstop (direct) flights between Idaho Falls and Washington, D.C. arrive?
What time do flights between Idaho Falls and Washington, D.C. depart?
What time do flights between Idaho Falls and Washington, D.C. arrive?

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