Cheap flights from Idaho to Washington, D.C. (WAS)

BOI — WAS
Aug 14 — Aug 211

How far in advance should I book a flight from Idaho to Washington, D.C.?

To save on the cost of your flight from Idaho to Washington, D.C., book at least 54 days before your planned departure. Booking around this time can save you about 38% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $571 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $735.

What is the cheapest month to fly from Idaho to Washington, D.C.?

Our data shows that January tends to be the cheapest month to fly to Washington, D.C. from Idaho. Users have commonly found prices around $505 for the month, but tickets can be as low as $294. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Idaho to Washington, D.C. (ID - WAS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Washington, D.C. as you normally would.

Cheap flights from Idaho to Washington, D.C. in August, September 2022

The best prices found for Idaho to WAS flights for August, September
Sep 7 - Sep 21
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

9h 35m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

1 stop

23h 21m
$212

Multiple Airlines

Pick Dates

Deal found 8/8/22

Sep 3 - Sep 28
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

12h 35m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

1 stop

12h 35m
$217

Multiple Airlines

Pick Dates

Deal found 8/9/22

Sep 20 - Sep 26
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

9h 31m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

1 stop

23h 04m
$219

Multiple Airlines

Pick Dates

Deal found 8/7/22

Idaho to Washington, D.C. 2022 flight deals

Cheap flights to Washington, D.C. from Idaho found for this year
Sep 7 - Sep 21
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

9h 35m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

1 stop

23h 21m
$212

Multiple Airlines

Pick Dates

Deal found 8/8/22

Sep 3 - Sep 28
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

12h 35m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

1 stop

12h 35m
$217

Multiple Airlines

Pick Dates

Deal found 8/9/22

Sep 20 - Sep 26
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

9h 31m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

1 stop

23h 04m
$219

Multiple Airlines

Pick Dates

Deal found 8/7/22

Cheap United Airlines flights from Idaho to Washington, D.C.

Sep 23 - Oct 1
IDA

Idaho Falls Fanning Field

IAD

Washington, D.C. Dulles Intl

1 stop

17h 30m
IAD

Washington, D.C. Dulles Intl

IDA

Idaho Falls Fanning Field

1 stop

14h 05m
$414

United Airlines

Pick Dates

Deal found 8/8/22

Sep 23 - Oct 1
IDA

Idaho Falls Fanning Field

BWI

Baltimore/Washington

2 stops

26h 29m
BWI

Baltimore/Washington

IDA

Idaho Falls Fanning Field

2 stops

25h 31m
$453

United Airlines

Pick Dates

Deal found 8/7/22

Sep 23 - Oct 1
IDA

Idaho Falls Fanning Field

IAD

Washington, D.C. Dulles Intl

1 stop

17h 30m
IAD

Washington, D.C. Dulles Intl

IDA

Idaho Falls Fanning Field

2 stops

14h 29m
$458

United Airlines

Pick Dates

Deal found 8/8/22

Cheap Delta flights from Idaho to Washington, D.C.

Sep 3 - Sep 13
GEG

Spokane

IAD

Washington, D.C. Dulles Intl

1 stop

5h 59m
IAD

Washington, D.C. Dulles Intl

GEG

Spokane

1 stop

7h 56m
$369

Delta

Pick Dates

Deal found 8/7/22

Sep 3 - Sep 13
GEG

Spokane

IAD

Washington, D.C. Dulles Intl

2 stops

10h 10m
IAD

Washington, D.C. Dulles Intl

GEG

Spokane

1 stop

7h 56m
$373

Delta

Pick Dates

Deal found 8/7/22

Sep 20 - Sep 24
GEG

Spokane

BWI

Baltimore/Washington

1 stop

6h 59m
BWI

Baltimore/Washington

GEG

Spokane

2 stops

9h 08m
$384

Delta

Pick Dates

Deal found 8/8/22

Last minute flights from Idaho to Washington, D.C.

Late deals on return flights to Washington, D.C. from Idaho, departing today and this week
Aug 19 - Aug 23
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

12h 35m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

2 stops

10h 58m
$348

Multiple Airlines

Pick Dates

Deal found 8/8/22

Aug 19 - Aug 31
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

12h 35m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

2 stops

10h 58m
$369

Multiple Airlines

Pick Dates

Deal found 8/8/22

Aug 15 - Aug 20
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

29h 53m
BWI

Baltimore/Washington

BOI

Boise Air Term. Gowen Fld

2 stops

15h 14m
$379

Multiple Airlines

Pick Dates

Deal found 8/6/22

One-way flights to Washington, D.C. from Idaho

The cheapest one-way flights from Idaho to Washington, D.C.
Aug 27
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

12h 30m
$114

Spirit Airlines

Pick Dates

Deal found 8/8/22

Sep 19
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

22h 28m
$119

Spirit Airlines

Pick Dates

Deal found 8/8/22

Aug 24
BOI

Boise Air Term. Gowen Fld

BWI

Baltimore/Washington

1 stop

12h 35m
$121

Multiple Airlines

Pick Dates

Deal found 8/8/22

Related info for your journey

Useful info, stats and facts about Idaho to Washington, D.C. flights.

Which airlines flying from Idaho to Washington, D.C. have flexible cancellations due to COVID-19?

Delta, United Airlines, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Idaho to Washington, D.C. for under $300 on Cheapflights?

Yes, there are multiple flights from Idaho to Washington, D.C. for under $300. The cheapest flight booked recently is on Multiple Airlines for just $212, but on average you can expect to pay $239.

Are there last-minute flights available from Idaho to Washington, D.C. for under $400?

There are currently 20+ open flights from Idaho to Washington, D.C. within the next 7 days for less than $400.

What are the most popular routes from Idaho to Washington, D.C.?

When deciding which route to take from Idaho to Washington, D.C. consider Boise Air Term. Gowen Fld - Washington, D.C. Dulles Intl, Spokane - Washington, D.C. Dulles Intl or Spokane - Washington, D.C. Reagan-National as they are the most popular.

What are the most popular airlines that fly from Idaho to Washington, D.C.?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Idaho to Washington, D.C..

What are the cheapest flights from Idaho to Washington, D.C.?

On average you can expect to pay $463 for a flight from Idaho to Washington, D.C.. The cheapest flight overall is $302 while the most popular route, (Boise Air Term. Gowen Fld - Washington, D.C. Dulles Intl) is currently priced at $398.

Departure points for flights from Idaho to Washington, D.C.

Select to see more specific information for flights to Washington, D.C. from all departure points in Idaho

Top 5 airlines flying from Idaho to Washington, D.C.

The chart below displays the airlines Cheapflights users traveling from Idaho to Washington, D.C. choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
FrontierCheapest$110Average$200FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
American AirlinesCheapest$138Average$500FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
Alaska AirlinesCheapest$161Average$362FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
DeltaCheapest$244Average$757FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest$294Average$534FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from Idaho to Washington, D.C.

See what time of day planes typically take off from Idaho to Washington, D.C.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM