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Cheap flights from Idaho to Washington, D.C. from $119

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 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:40 pm - 11:25 pm
BOI
-
BWI
6h 45m
1 stop
United Airlines Logo
8:31 am - 4:49 pm
BWI
-
BOI
10h 18m
1 stop
$237United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
2:40 pm - 11:25 pm
BOI
-
BWI
6h 45m
1 stop
United Airlines Logo
6:13 am - 4:49 pm
BWI
-
BOI
12h 36m
2 stops
$242United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
2:40 pm - 11:25 pm
BOI
-
BWI
6h 45m
1 stop
United Airlines Logo
8:31 am - 4:49 pm
BWI
-
BOI
10h 18m
1 stop
$257United Airlines
Tue, Mar 3 - Tue, Mar 10
United Airlines Logo
2:40 pm - 11:25 pm
BOI
-
BWI
6h 45m
1 stop
United Airlines Logo
6:13 am - 4:49 pm
BWI
-
BOI
12h 36m
2 stops
$262United Airlines
Tue, Mar 3 - Tue, Mar 10
Delta Logo
8:35 pm - 11:41 am
BOI
-
BWI
13h 06m
2 stops
Delta Logo
12:27 pm - 9:01 pm
BWI
-
BOI
10h 34m
2 stops
$267Delta
Wed, Apr 15 - Sat, Apr 18
Delta Logo
12:35 pm - 12:53 am
GEG
-
BWI
9h 18m
1 stop
Delta Logo
2:38 pm - 9:37 pm
BWI
-
GEG
9h 59m
1 stop
$287Delta
Thu, Mar 12 - Tue, Mar 17
Alaska Airlines Logo
5:20 pm - 5:46 pm
IDA
-
BWI
22h 26m
1 stop
Alaska Airlines Logo
6:46 pm - 4:43 pm
BWI
-
IDA
23h 57m
1 stop
$293Alaska Airlines
Wed, Feb 25 - Mon, Mar 2
Alaska Airlines Logo
6:00 pm - 5:46 pm
BOI
-
BWI
21h 46m
1 stop
Alaska Airlines Logo
6:46 pm - 9:40 am
BWI
-
BOI
16h 54m
1 stop
$297Alaska Airlines
Tue, Mar 10 - Sat, Mar 14
American Airlines Logo
12:25 pm - 10:00 pm
GEG
-
BWI
6h 35m
1 stop
American Airlines Logo
6:52 am - 11:44 am
BWI
-
GEG
7h 52m
1 stop
$312American Airlines
Thu, Mar 12 - Tue, Mar 17
American Airlines Logo
1:08 pm - 10:59 pm
JAC
-
BWI
7h 51m
1 stop
American Airlines Logo
7:00 am - 12:41 pm
BWI
-
JAC
7h 41m
1 stop
$459American Airlines
Thu, Apr 2 - Sun, Apr 12

American Airlines flights from Idaho to Baltimore

Our best American Airlines deals on Idaho to Baltimore flight tickets
American Airlines
Mar 12
GEG12:25 pmSpokane
6h 35m
1 stop
BWI10:00 pmBaltimore/Washington
Mar 17
BWI6:52 amBaltimore/Washington
7h 52m
1 stop
GEG11:44 amSpokane
$312
American Airlines
Mar 3
GEG12:25 pmSpokane
6h 28m
1 stop
BWI9:53 pmBaltimore/Washington
Mar 8
BWI7:03 pmBaltimore/Washington
8h 20m
1 stop
GEG12:23 amSpokane
$329
American Airlines
Mar 2
GEG12:25 pmSpokane
8h 08m
1 stop
BWI11:33 pmBaltimore/Washington
Mar 5
BWI5:00 amBaltimore/Washington
9h 44m
1 stop
GEG11:44 amSpokane
$337

United Airlines flights from Idaho to Baltimore

Our best United Airlines deals on Idaho to Baltimore flight tickets
United Airlines
Mar 4
BOI2:40 pmBoise Air Term. Gowen Fld
6h 45m
1 stop
BWI11:25 pmBaltimore/Washington
Mar 11
BWI8:31 amBaltimore/Washington
10h 18m
1 stop
BOI4:49 pmBoise Air Term. Gowen Fld
$237
United Airlines
Mar 4
BOI2:40 pmBoise Air Term. Gowen Fld
6h 45m
1 stop
BWI11:25 pmBaltimore/Washington
Mar 11
BWI6:13 amBaltimore/Washington
12h 36m
2 stops
BOI4:49 pmBoise Air Term. Gowen Fld
$242
United Airlines
Mar 3
BOI2:40 pmBoise Air Term. Gowen Fld
6h 45m
1 stop
BWI11:25 pmBaltimore/Washington
Mar 10
BWI8:31 amBaltimore/Washington
10h 18m
1 stop
BOI4:49 pmBoise Air Term. Gowen Fld
$257

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 February 5, 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

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 3/4

2:40 pm-11:25 pm

1 stop6h 45m

Baltimore/Washington

Wed 3/11

8:31 am-4:49 pm

1 stop10h 18m

$237

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 3/4

2:40 pm-11:25 pm

1 stop6h 45m

Baltimore/Washington

Wed 3/11

6:13 am-4:49 pm

2 stops12h 36m

$242

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 3/3

2:40 pm-11:25 pm

1 stop6h 45m

Baltimore/Washington

Tue 3/10

8:31 am-4:49 pm

1 stop10h 18m

$257

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 3/3

2:40 pm-11:25 pm

1 stop6h 45m

Baltimore/Washington

Tue 3/10

6:13 am-4:49 pm

2 stops12h 36m

$262

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 4/15

8:35 pm-11:41 am

2 stops13h 06m

Baltimore/Washington

Sat 4/18

12:27 pm-9:01 pm

2 stops10h 34m

$267

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 3/12

12:35 pm-12:53 am

1 stop9h 18m

Baltimore/Washington

Tue 3/17

2:38 pm-9:37 pm

1 stop9h 59m

$287

Idaho FallsBaltimore

IDA - BWI

IDABWI

Idaho Falls Fanning Field

Wed 2/25

5:20 pm-5:46 pm

1 stop22h 26m

Baltimore/Washington

Mon 3/2

6:46 pm-4:43 pm

1 stop23h 57m

$293

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 3/10

6:00 pm-5:46 pm

1 stop21h 46m

Baltimore/Washington

Sat 3/14

6:46 pm-9:40 am

1 stop16h 54m

$297

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 3/12

12:25 pm-10:00 pm

1 stop6h 35m

Baltimore/Washington

Tue 3/17

6:52 am-11:44 am

1 stop7h 52m

$312

JacksonBaltimore

JAC - BWI

JACBWI

Jackson Hole

Thu 4/2

1:08 pm-10:59 pm

1 stop7h 51m

Baltimore/Washington

Sun 4/12

7:00 am-12:41 pm

1 stop7h 41m

$459

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 January, then September is your next best option. Flight prices from Idaho to Baltimore during September average around $361.

How far in advance should I book a flight to Baltimore?

You are more likely to see cheaper flights to Baltimore from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $433 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from Idaho for as low as $268 on momondo.

Can stopping save me money on Idaho to Baltimore flights?

You could potentially save up to 57% 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 00m

Direct flights

None
The fastest flight from Idaho to Baltimore takes 6h 00m
There are no direct flights from Idaho to Baltimore. There are no popular flight routes from Idaho to Baltimore.
Search flight deals

  • 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
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
DeltaPriceFrom $286Free CancellationRating
7.9
8,145 reviews
Search Delta flights
SouthwestPriceFrom $340Free CancellationRating
8.0
4,274 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.

An easier way to manage your Baltimore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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