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Cheap flights from Idaho to Washington, D.C. from $130

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 12/1. 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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Find the cheapest flights from Idaho to Washington, D.C.

Cheap round-trip flights

Frontier Logo
12:33 pm - 5:48 pmBOI-BWI
27h 15m2 stops
Frontier Logo
5:48 am - 11:48 amBWI-BOI
32h 00m2 stops
$238Frontier
Find Deal
Thu, Nov 6 - Sat, Nov 8
United Airlines Logo
2:39 pm - 11:18 pmBOI-BWI
6h 39m1 stop
United Airlines Logo
6:15 am - 11:39 amBWI-BOI
7h 24m1 stop
$281United Airlines
Find Deal
Wed, Oct 22 - Wed, Oct 29
Delta Logo
1:39 pm - 10:15 pmBOI-BWI
6h 36m1 stop
Delta Logo
6:00 am - 4:06 pmBWI-BOI
12h 06m2 stops
$286Delta
Find Deal
Tue, Oct 21 - Wed, Oct 29
Delta Logo
11:12 am - 12:41 amBOI-BWI
11h 29m2 stops
Delta Logo
6:00 am - 4:06 pmBWI-BOI
12h 06m2 stops
$291Delta
Find Deal
Wed, Oct 22 - Tue, Oct 28
Multiple Airlines Logo
12:03 pm - 12:25 pmGEG-BWI
21h 22m2 stops
Multiple Airlines Logo
6:21 pm - 8:18 pmBWI-GEG
28h 57m1 stop
$291Multiple Airlines
Find Deal
Thu, Oct 16 - Wed, Oct 22
Southwest Logo
3:55 pm - 5:00 amBOI-BWI
11h 05m1 stop
Southwest Logo
6:15 am - 2:05 pmBWI-BOI
9h 50m1 stop
$326Southwest
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Thu, Oct 30 - Mon, Nov 3
Alaska Airlines Logo
8:26 pm - 6:12 amBOI-BWI
7h 46m1 stop
Alaska Airlines Logo
7:38 am - 4:17 pmBWI-BOI
10h 39m1 stop
$328Alaska Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 29
Alaska Airlines Logo
8:26 pm - 6:12 amBOI-BWI
7h 46m1 stop
Alaska Airlines Logo
7:38 am - 3:12 pmBWI-BOI
9h 34m1 stop
$336Alaska Airlines
Find Deal
Mon, Oct 20 - Sat, Nov 1
Southwest Logo
6:20 am - 5:30 pmGEG-BWI
8h 10m2 stops
Southwest Logo
10:25 am - 8:50 pmBWI-GEG
13h 25m2 stops
$348Southwest
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Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
9:08 pm - 4:30 amGEG-BWI
28h 22m1 stop
Multiple Airlines Logo
6:10 am - 8:18 pmBWI-GEG
17h 08m2 stops
$473Multiple Airlines
Find Deal
Sun, Oct 12 - Thu, Oct 16

American Airlines flights from Idaho to Baltimore

Our best American Airlines deals on Idaho to Baltimore flight tickets
American Airlines
Dec 12
BOI1:57 pmBoise Air Term. Gowen Fld
7h 55m
1 stop
BWI11:52 pmBaltimore/Washington
Dec 15
BWI6:02 amBaltimore/Washington
8h 25m
1 stop
BOI12:27 pmBoise Air Term. Gowen Fld
$359
Find similar
American Airlines
Oct 21
BOI1:26 pmBoise Air Term. Gowen Fld
8h 22m
1 stop
BWI11:48 pmBaltimore/Washington
Oct 28
BWI6:14 amBaltimore/Washington
8h 31m
1 stop
BOI12:45 pmBoise Air Term. Gowen Fld
$381
Find similar
American Airlines
Oct 21
BOI1:26 pmBoise Air Term. Gowen Fld
8h 22m
1 stop
BWI11:48 pmBaltimore/Washington
Nov 1
BWI6:14 amBaltimore/Washington
8h 24m
1 stop
BOI12:38 pmBoise Air Term. Gowen Fld
$394
Find similar

Alaska Airlines flights from Idaho to Baltimore

Our best Alaska Airlines deals on Idaho to Baltimore flight tickets
Alaska Airlines
Oct 21
BOI8:26 pmBoise Air Term. Gowen Fld
7h 46m
1 stop
BWI6:12 amBaltimore/Washington
Oct 29
BWI7:38 amBaltimore/Washington
10h 39m
1 stop
BOI4:17 pmBoise Air Term. Gowen Fld
$328
Find similar
Alaska Airlines
Oct 20
BOI8:26 pmBoise Air Term. Gowen Fld
7h 46m
1 stop
BWI6:12 amBaltimore/Washington
Nov 1
BWI7:38 amBaltimore/Washington
9h 34m
1 stop
BOI3:12 pmBoise Air Term. Gowen Fld
$336
Find similar
Alaska Airlines
Oct 20
BOI8:26 pmBoise Air Term. Gowen Fld
7h 46m
1 stop
BWI6:12 amBaltimore/Washington
Nov 1
BWI7:38 amBaltimore/Washington
11h 33m
2 stops
BOI5:11 pmBoise Air Term. Gowen Fld
$355
Find similar

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 September 29, 2025.
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

Thu 11/6

12:33 pm-5:48 pm

2 stops27h 15m

Baltimore/Washington

Sat 11/8

5:48 am-11:48 am

2 stops32h 00m

$238

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 10/22

2:39 pm-11:18 pm

1 stop6h 39m

Baltimore/Washington

Wed 10/29

6:15 am-11:39 am

1 stop7h 24m

$281

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 10/21

1:39 pm-10:15 pm

1 stop6h 36m

Baltimore/Washington

Wed 10/29

6:00 am-4:06 pm

2 stops12h 06m

$286

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 10/22

11:12 am-12:41 am

2 stops11h 29m

Baltimore/Washington

Tue 10/28

6:00 am-4:06 pm

2 stops12h 06m

$291

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 10/16

12:03 pm-12:25 pm

2 stops21h 22m

Baltimore/Washington

Wed 10/22

6:21 pm-8:18 pm

1 stop28h 57m

$291

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 10/30

3:55 pm-5:00 am

1 stop11h 05m

Baltimore/Washington

Mon 11/3

6:15 am-2:05 pm

1 stop9h 50m

$326

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 10/21

8:26 pm-6:12 am

1 stop7h 46m

Baltimore/Washington

Wed 10/29

7:38 am-4:17 pm

1 stop10h 39m

$328

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Mon 10/20

8:26 pm-6:12 am

1 stop7h 46m

Baltimore/Washington

Sat 11/1

7:38 am-3:12 pm

1 stop9h 34m

$336

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 2/18

6:20 am-5:30 pm

2 stops8h 10m

Baltimore/Washington

Wed 2/25

10:25 am-8:50 pm

2 stops13h 25m

$348

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Sun 10/12

9:08 pm-4:30 am

1 stop28h 22m

Baltimore/Washington

Thu 10/16

6:10 am-8:18 pm

2 stops17h 08m

$473

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 $379.

What is the cheapest day to depart on your flight to Baltimore?

The cheapest day to depart from Idaho to Baltimore is on a Friday. Travelers who choose to depart for Baltimore on a Friday will often find tickets for as low as $432. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $760. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

What is the cheapest time of day to depart on your flight to Baltimore?

Flying to Baltimore from Idaho in the evening is the least expensive time of day to depart. momondo users have found prices as low as $407 when looking at flights departing in the evening. Flights at noon are often more expensive with an average ticket price of $572.

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 $445 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 $370 on momondo.

Can stopping save me money on Idaho to Baltimore flights?

You could potentially save up to 52% 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

Direct flights

None
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
DeltaPriceFrom $286Free CancellationRating
7.9
7,964 reviews
Search Delta flights
United AirlinesPriceFrom $305Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,246 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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