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Cheap flights from Idaho to Washington, D.C. from $147

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Washington, D.C. departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:45 pm - 6:20 am
BOI
-
BWI
9h 35m
1 stop
Delta Logo
7:39 am - 12:14 pm
BWI
-
BOI
6h 35m
1 stop
$293Delta
Tue, Aug 11 - Sat, Aug 15
Delta Logo
6:45 pm - 6:20 am
BOI
-
BWI
9h 35m
1 stop
Delta Logo
8:18 am - 5:55 pm
BWI
-
BOI
11h 37m
2 stops
$298Delta
Wed, Aug 26 - Mon, Aug 31
Southwest Logo
4:55 pm - 6:35 am
GEG
-
BWI
10h 40m
1 stop
Southwest Logo
3:40 pm - 10:25 pm
BWI
-
GEG
9h 45m
2 stops
$314Southwest
Tue, Sep 15 - Wed, Sep 23
Southwest Logo
10:55 am - 11:25 pm
GEG
-
BWI
9h 30m
1 stop
Southwest Logo
5:40 pm - 10:55 pm
BWI
-
GEG
8h 15m
1 stop
$318Southwest
Thu, Aug 13 - Wed, Aug 19
United Airlines Logo
5:00 am - 6:49 pm
GEG
-
BWI
10h 49m
2 stops
United Airlines Logo
6:10 am - 12:47 pm
BWI
-
GEG
9h 37m
2 stops
$319United Airlines
Wed, Nov 4 - Sat, Nov 7
Alaska Airlines Logo
6:00 am - 3:40 pm
BOI
-
BWI
7h 40m
1 stop
Alaska Airlines Logo
7:15 pm - 9:56 am
BWI
-
BOI
16h 41m
1 stop
$333Alaska Airlines
Sat, Sep 19 - Tue, Sep 22
United Airlines Logo
5:00 am - 6:49 pm
GEG
-
BWI
10h 49m
2 stops
United Airlines Logo
6:10 am - 12:18 pm
BWI
-
GEG
9h 08m
1 stop
$334United Airlines
Sat, Oct 31 - Sun, Nov 8
Alaska Airlines Logo
6:09 am - 5:12 pm
IDA
-
BWI
9h 03m
1 stop
Alaska Airlines Logo
7:00 am - 3:35 pm
BWI
-
IDA
10h 35m
1 stop
$419Alaska Airlines
Tue, Oct 27 - Sat, Oct 31
American Airlines Logo
12:50 pm - 11:41 pm
JAC
-
BWI
8h 51m
1 stop
American Airlines Logo
7:26 am - 2:57 pm
BWI
-
JAC
9h 31m
1 stop
$442American Airlines
Thu, Aug 27 - Tue, Sep 1
American Airlines Logo
2:20 pm - 11:41 pm
IDA
-
BWI
7h 21m
1 stop
American Airlines Logo
7:26 am - 1:50 pm
BWI
-
IDA
8h 24m
1 stop
$462American Airlines
Fri, Aug 21 - Mon, Aug 24

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Alaska Airlines flights from Idaho to Baltimore

Our best Alaska Airlines deals on Idaho to Baltimore flight tickets
Alaska Airlines
Sep 19
BOI6:00 amBoise Air Term. Gowen Fld
7h 40m
1 stop
BWI3:40 pmBaltimore/Washington
Sep 22
BWI7:15 pmBaltimore/Washington
16h 41m
1 stop
BOI9:56 amBoise Air Term. Gowen Fld
$333
Alaska Airlines
Sep 22
GEG5:12 amSpokane
7h 28m
1 stop
BWI3:40 pmBaltimore/Washington
Sep 23
BWI4:43 pmBaltimore/Washington
9h 28m
1 stop
GEG11:11 pmSpokane
$358
Alaska Airlines
Aug 25
GEG5:12 amSpokane
7h 28m
1 stop
BWI3:40 pmBaltimore/Washington
Aug 26
BWI7:50 amBaltimore/Washington
9h 57m
1 stop
GEG2:47 pmSpokane
$389

United Airlines flights from Idaho to Baltimore

Our best United Airlines deals on Idaho to Baltimore flight tickets
United Airlines
Nov 4
GEG5:00 amSpokane
10h 49m
2 stops
BWI6:49 pmBaltimore/Washington
Nov 7
BWI6:10 amBaltimore/Washington
9h 37m
2 stops
GEG12:47 pmSpokane
$319
United Airlines
Oct 31
GEG5:00 amSpokane
10h 49m
2 stops
BWI6:49 pmBaltimore/Washington
Nov 8
BWI6:10 amBaltimore/Washington
9h 08m
1 stop
GEG12:18 pmSpokane
$334
United Airlines
Aug 3
BOI6:52 pmBoise Air Term. Gowen Fld
10h 18m
1 stop
BWI7:10 amBaltimore/Washington
Aug 6
BWI6:15 amBaltimore/Washington
7h 17m
1 stop
BOI11:32 amBoise Air Term. Gowen Fld
$375

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Baltimore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Idaho to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 8/11

6:45 pm-6:20 am

1 stop9h 35m

Baltimore/Washington

Sat 8/15

7:39 am-12:14 pm

1 stop6h 35m

$293

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 8/26

6:45 pm-6:20 am

1 stop9h 35m

Baltimore/Washington

Mon 8/31

8:18 am-5:55 pm

2 stops11h 37m

$298

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 9/15

4:55 pm-6:35 am

1 stop10h 40m

Baltimore/Washington

Wed 9/23

3:40 pm-10:25 pm

2 stops9h 45m

$314

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 8/13

10:55 am-11:25 pm

1 stop9h 30m

Baltimore/Washington

Wed 8/19

5:40 pm-10:55 pm

1 stop8h 15m

$318

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 11/4

5:00 am-6:49 pm

2 stops10h 49m

Baltimore/Washington

Sat 11/7

6:10 am-12:47 pm

2 stops9h 37m

$319

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 9/19

6:00 am-3:40 pm

1 stop7h 40m

Baltimore/Washington

Tue 9/22

7:15 pm-9:56 am

1 stop16h 41m

$333

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Sat 10/31

5:00 am-6:49 pm

2 stops10h 49m

Baltimore/Washington

Sun 11/8

6:10 am-12:18 pm

1 stop9h 08m

$334

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Tue 10/27

6:09 am-5:12 pm

1 stop9h 03m

Baltimore/Washington

Sat 10/31

7:00 am-3:35 pm

1 stop10h 35m

$419

JacksonBaltimore

JAC - BWI

JACBWI

Jackson Hole

Thu 8/27

12:50 pm-11:41 pm

1 stop8h 51m

Baltimore/Washington

Tue 9/1

7:26 am-2:57 pm

1 stop9h 31m

$442
Quickest round-trip

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Fri 8/21

2:20 pm-11:41 pm

1 stop7h 21m

Baltimore/Washington

Mon 8/24

7:26 am-1:50 pm

1 stop8h 24m

$462

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Idaho to Baltimore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in March, then August is your next best option. Flight prices from Idaho to Baltimore during August average around $196.

Can stopping save me money on Idaho to Baltimore flights?

You could potentially save up to 33% on your flight if you consider stops on a Idaho to Baltimore flight.

Cheap Idaho to Baltimore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Baltimore

Fastest flight time

6h 24m

Direct flights

None
The fastest flight from Idaho to Baltimore takes 6h 24m
There are no direct flights from Idaho to Baltimore. There are no popular flight routes from Idaho to Baltimore.
Search flight deals

Frequently asked questions about flying from Idaho to Baltimore

  • When did momondo last update prices for flights from Idaho to Baltimore/Washington Airport?

    Prices for flights from Idaho to Baltimore/Washington Airport were last updated today.

  • How many operators does momondo search for flights from Idaho to Baltimore/Washington Airport?

  • How old do you have to be to fly from Idaho to Baltimore/Washington Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The necessary travel and health documents for your Baltimore/Washington Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Baltimore

Compare and see reviews for airlines that fly from Idaho to Baltimore with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $196Free CancellationRating
7.8
8,440 reviews
Search Delta flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,887 reviews
Search United Airlines flights
SouthwestPriceFrom $340Free CancellationRating
7.9
4,242 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Baltimore?

It is quick and easy to find Idaho to Baltimore flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Baltimore that suits you.

Can I find flights from Idaho to Baltimore with flexible booking policies on momondo?

Flights from Idaho to Baltimore with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho to Baltimore?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Baltimore from Idaho.

I’m not ready to book a flight from Idaho to Baltimore right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Idaho to Baltimore flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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