What airlines fly to Idaho?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Idaho from Baltimore according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Baltimore/Washington to Idaho?

United Airlines, Southwest, and American Airlines are the most popular carriers operating from Baltimore/Washington to Idaho

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

Prices for flights from Baltimore/Washington Airport to Idaho are refreshed on a daily basis.

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

As of March 2026, there are 5 operators available to choose from for flights from Baltimore/Washington Airport to Idaho.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Baltimore/Washington Airport to Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$117 Cheap Flights from Baltimore to Idaho in 2026

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Find the cheapest flights from Baltimore to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:39 am - 12:32 pm

BWI

GEG

9h 53m

1 stop

1:22 pm - 11:56 pm

GEG

BWI

7h 34m

1 stop

$233American Airlines

Tue, Apr 21 - Tue, Apr 28

6:03 am - 1:04 pm

BWI

GEG

10h 01m

2 stops

12:36 pm - 12:38 am

GEG

BWI

9h 02m

1 stop

$238Delta

Tue, Apr 21 - Tue, Apr 28

6:23 am - 4:48 pm

BWI

BOI

12h 25m

2 stops

2:37 pm - 11:24 pm

BOI

BWI

6h 47m

1 stop

$238United Airlines

Tue, Apr 14 - Tue, Apr 21

6:03 am - 1:04 pm

BWI

GEG

10h 01m

2 stops

3:30 pm - 6:00 am

GEG

BWI

11h 30m

2 stops

$243Delta

Tue, Apr 21 - Tue, Apr 28

10:11 am - 8:00 pm

BWI

BOI

11h 49m

2 stops

8:40 pm - 9:11 am

BOI

BWI

10h 31m

2 stops

$243Delta

Tue, Apr 14 - Tue, Apr 21

3:42 pm - 10:57 pm

BWI

BOI

9h 15m

1 stop

7:11 am - 5:08 pm

BOI

BWI

7h 57m

1 stop

$262United Airlines

Tue, Apr 14 - Tue, Apr 21

5:25 pm - 11:50 pm

BWI

BOI

8h 25m

1 stop

2:05 pm - 12:25 am

BOI

BWI

8h 20m

1 stop

$307Southwest

Tue, Mar 31 - Tue, Apr 7

6:30 pm - 12:30 am

BWI

GEG

9h 00m

1 stop

1:45 pm - 11:50 pm

GEG

BWI

7h 05m

1 stop

$320Southwest

Fri, May 1 - Tue, May 5

7:04 am - 3:33 pm

BWI

BOI

10h 29m

1 stop

12:15 pm - 5:44 am

BOI

BWI

15h 29m

1 stop

$329Alaska Airlines

Tue, Apr 28 - Thu, May 7

4:17 pm - 1:06 pm

BWI

IDA

22h 49m

1 stop

4:14 pm - 3:19 pm

IDA

BWI

21h 05m

1 stop

$394Alaska Airlines

Tue, Jun 9 - Fri, Jun 12

Southwest flights from Baltimore to Idaho

Our best Southwest deals on Baltimore to Idaho flight tickets

Southwest

Mar 31

BWI5:25 pmBaltimore/Washington

8h 25m

1 stop

BOI11:50 pmBoise Air Term. Gowen Fld

Apr 7

BOI2:05 pmBoise Air Term. Gowen Fld

8h 20m

1 stop

BWI12:25 amBaltimore/Washington

$307

Southwest

May 1

BWI6:30 pmBaltimore/Washington

9h 00m

1 stop

GEG12:30 amSpokane

May 5

GEG1:45 pmSpokane

7h 05m

1 stop

BWI11:50 pmBaltimore/Washington

$320

Southwest

May 1

BWI4:20 pmBaltimore/Washington

9h 00m

2 stops

GEG10:20 pmSpokane

May 5

GEG1:45 pmSpokane

7h 05m

1 stop

BWI11:50 pmBaltimore/Washington

$325

Alaska Airlines flights from Baltimore to Idaho

Our best Alaska Airlines deals on Baltimore to Idaho flight tickets

Alaska Airlines

Apr 28

BWI7:04 amBaltimore/Washington

10h 29m

1 stop

BOI3:33 pmBoise Air Term. Gowen Fld

May 7

BOI12:15 pmBoise Air Term. Gowen Fld

15h 29m

1 stop

BWI5:44 amBaltimore/Washington

$329

Alaska Airlines

May 1

BWI7:04 amBaltimore/Washington

8h 36m

1 stop

GEG12:40 pmSpokane

May 4

GEG3:12 pmSpokane

11h 32m

1 stop

BWI5:44 amBaltimore/Washington

$336

Alaska Airlines

Jun 3

BWI4:17 pmBaltimore/Washington

9h 49m

1 stop

GEG11:06 pmSpokane

Jun 8

GEG7:25 pmSpokane

16h 52m

1 stop

BWI3:17 pmBaltimore/Washington

$362

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 4/21

5:39 am-12:32 pm

1 stop9h 53m

Spokane

Tue 4/28

1:22 pm-11:56 pm

1 stop7h 34m

$233

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 4/21

6:03 am-1:04 pm

2 stops10h 01m

Spokane

Tue 4/28

12:36 pm-12:38 am

1 stop9h 02m

$238

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 4/14

6:23 am-4:48 pm

2 stops12h 25m

Boise Air Term. Gowen Fld

Tue 4/21

2:37 pm-11:24 pm

1 stop6h 47m

$238

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 4/21

6:03 am-1:04 pm

2 stops10h 01m

Spokane

Tue 4/28

3:30 pm-6:00 am

2 stops11h 30m

$243

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 4/14

10:11 am-8:00 pm

2 stops11h 49m

Boise Air Term. Gowen Fld

Tue 4/21

8:40 pm-9:11 am

2 stops10h 31m

$243

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 4/14

3:42 pm-10:57 pm

1 stop9h 15m

Boise Air Term. Gowen Fld

Tue 4/21

7:11 am-5:08 pm

1 stop7h 57m

$262

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 3/31

5:25 pm-11:50 pm

1 stop8h 25m

Boise Air Term. Gowen Fld

Tue 4/7

2:05 pm-12:25 am

1 stop8h 20m

$307

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Fri 5/1

6:30 pm-12:30 am

1 stop9h 00m

Spokane

Tue 5/5

1:45 pm-11:50 pm

1 stop7h 05m

$320

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 4/28

7:04 am-3:33 pm

1 stop10h 29m

Boise Air Term. Gowen Fld

Thu 5/7

12:15 pm-5:44 am

1 stop15h 29m

$329

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Tue 6/9

4:17 pm-1:06 pm

1 stop22h 49m

Idaho Falls Fanning Field

Fri 6/12

4:14 pm-3:19 pm

1 stop21h 05m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Baltimore to Idaho

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

Prices

Airlines

What is the cheapest month to fly to Idaho?

In general, January is the cheapest month to fly from Baltimore to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $342. If you don’t want to visit Idaho in January, then you should wait until September to fly from Baltimore, when ticket prices are also cheap, with an average price of $386.

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

You are more likely to see cheaper flights to Idaho from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $476 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Baltimore for as low as $328 on momondo.

Can stopping save me money on Baltimore to Idaho flights?

You could potentially save up to 22% on your flight if you consider stops on a Baltimore to Idaho flight.

Cheap Baltimore to Idaho flight deals and tips

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

Fastest flight time	6h 35m
Direct flights	None

The fastest flight from Baltimore to Idaho takes 6h 35m

There are no direct flights from Baltimore to Idaho. There are no popular flight routes from Baltimore to Idaho.

Search flight deals

When did momondo last update prices for flights from Baltimore/Washington Airport to Idaho?
Prices for flights from Baltimore/Washington Airport to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Baltimore/Washington Airport to Idaho?
As of March 2026, there are 5 operators available to choose from for flights from Baltimore/Washington Airport to Idaho.
How old do you have to be to fly from Baltimore/Washington Airport to Idaho?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Baltimore/Washington Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Baltimore to Idaho

Compare and see reviews for airlines that fly from Baltimore to Idaho with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $208	Free Cancellation	Rating 7.9 8,240 reviews	Search Delta flights
United Airlines	PriceFrom $275	Free Cancellation	Rating 7.4 9,371 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $321	Free Cancellation	Rating 8.0 11,973 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $342	Free Cancellation	Rating 8.0 4,303 reviews	Search Southwest flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho from Baltimore.

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

All flight searches from Baltimore to Idaho on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Idaho from Baltimore. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Baltimore to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.