What airlines fly to Idaho?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Idaho from Baltimore according to our data. Delta 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?

Frontier, Delta, and United 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 December 2025, 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.

$113 Cheap Flights from Baltimore to Idaho in 2025/26

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Find the cheapest flights from Baltimore to Idaho

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:00 pm - 10:52 pm

BWI

GEG

10h 52m2 stops

9:20 am - 11:44 pm

GEG

BWI

11h 24m2 stops

$256Delta

Mon, Jan 12 - Sat, Jan 17

8:42 am - 4:10 pm

BWI

BOI

9h 28m1 stop

6:10 am - 3:04 pm

BOI

BWI

6h 54m1 stop

$284United Airlines

Sat, Jan 17 - Wed, Jan 21

1:02 pm - 8:58 pm

BWI

GEG

10h 56m2 stops

11:25 am - 11:05 pm

GEG

BWI

8h 40m2 stops

$287Delta

Sat, Jan 17 - Sat, Jan 24

8:42 am - 4:10 pm

BWI

BOI

9h 28m1 stop

10:28 am - 9:21 pm

BOI

BWI

8h 53m2 stops

$289United Airlines

Sat, Jan 17 - Wed, Jan 21

4:10 pm - 8:42 pm

BWI

JAC

6h 32m1 stop

2:40 pm - 11:15 pm

JAC

BWI

6h 35m1 stop

$289United Airlines

Mon, Jan 26 - Fri, Jan 30

10:05 am - 7:45 pm

BWI

BOI

11h 40m2 stops

10:28 am - 9:21 pm

BOI

BWI

8h 53m2 stops

$294United Airlines

Sat, Jan 17 - Wed, Jan 21

6:07 am - 1:08 pm

BWI

BOI

9h 01m1 stop

1:58 pm - 11:10 pm

BOI

BWI

7h 12m1 stop

$307American Airlines

Tue, Feb 3 - Tue, Feb 10

6:07 am - 2:42 pm

BWI

JAC

10h 35m1 stop

1:42 pm - 11:52 pm

JAC

BWI

8h 10m1 stop

$309American Airlines

Thu, Jan 8 - Thu, Jan 15

7:14 pm - 6:22 pm

BWI

BOI

25h 08m1 stop

3:43 pm - 6:14 pm

BOI

BWI

24h 31m1 stop

$365Alaska Airlines

Fri, Feb 6 - Sun, Feb 8

7:14 pm - 10:59 pm

BWI

IDA

29h 45m1 stop

6:58 pm - 6:14 pm

IDA

BWI

21h 16m1 stop

$432Alaska Airlines

Sat, Jan 17 - Wed, Jan 21

United Airlines flights from Baltimore to Idaho

Our best United Airlines deals on Baltimore to Idaho flight tickets

United Airlines

Jan 17

BWI8:42 amBaltimore/Washington

9h 28m

1 stop

BOI4:10 pmBoise Air Term. Gowen Fld

Jan 21

BOI6:10 amBoise Air Term. Gowen Fld

6h 54m

1 stop

BWI3:04 pmBaltimore/Washington

$284

Find similar

United Airlines

Jan 17

BWI8:42 amBaltimore/Washington

9h 28m

1 stop

BOI4:10 pmBoise Air Term. Gowen Fld

Jan 21

BOI10:28 amBoise Air Term. Gowen Fld

8h 53m

2 stops

BWI9:21 pmBaltimore/Washington

$289

Find similar

United Airlines

Jan 17

BWI10:05 amBaltimore/Washington

11h 40m

2 stops

BOI7:45 pmBoise Air Term. Gowen Fld

Jan 21

BOI10:28 amBoise Air Term. Gowen Fld

8h 53m

2 stops

BWI9:21 pmBaltimore/Washington

$294

Find similar

American Airlines flights from Baltimore to Idaho

Our best American Airlines deals on Baltimore to Idaho flight tickets

American Airlines

Feb 3

BWI6:07 amBaltimore/Washington

9h 01m

1 stop

BOI1:08 pmBoise Air Term. Gowen Fld

Feb 10

BOI1:58 pmBoise Air Term. Gowen Fld

7h 12m

1 stop

BWI11:10 pmBaltimore/Washington

$307

Find similar

American Airlines

Jan 8

BWI6:07 amBaltimore/Washington

10h 35m

1 stop

JAC2:42 pmJackson Hole

Jan 15

JAC1:42 pmJackson Hole

8h 10m

1 stop

BWI11:52 pmBaltimore/Washington

$309

Find similar

American Airlines

Jan 8

BWI6:00 amBaltimore/Washington

8h 21m

1 stop

JAC12:21 pmJackson Hole

Jan 15

JAC2:10 pmJackson Hole

7h 08m

1 stop

BWI11:18 pmBaltimore/Washington

$324

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Mon 1/12

3:00 pm-10:52 pm

2 stops10h 52m

Spokane

Sat 1/17

9:20 am-11:44 pm

2 stops11h 24m

$256

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 1/17

8:42 am-4:10 pm

1 stop9h 28m

Boise Air Term. Gowen Fld

Wed 1/21

6:10 am-3:04 pm

1 stop6h 54m

$284

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 1/17

1:02 pm-8:58 pm

2 stops10h 56m

Spokane

Sat 1/24

11:25 am-11:05 pm

2 stops8h 40m

$287

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 1/17

8:42 am-4:10 pm

1 stop9h 28m

Boise Air Term. Gowen Fld

Wed 1/21

10:28 am-9:21 pm

2 stops8h 53m

$289

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Mon 1/26

4:10 pm-8:42 pm

1 stop6h 32m

Jackson Hole

Fri 1/30

2:40 pm-11:15 pm

1 stop6h 35m

$289

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 1/17

10:05 am-7:45 pm

2 stops11h 40m

Boise Air Term. Gowen Fld

Wed 1/21

10:28 am-9:21 pm

2 stops8h 53m

$294

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 2/3

6:07 am-1:08 pm

1 stop9h 01m

Boise Air Term. Gowen Fld

Tue 2/10

1:58 pm-11:10 pm

1 stop7h 12m

$307

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Thu 1/8

6:07 am-2:42 pm

1 stop10h 35m

Jackson Hole

Thu 1/15

1:42 pm-11:52 pm

1 stop8h 10m

$309

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Fri 2/6

7:14 pm-6:22 pm

1 stop25h 08m

Boise Air Term. Gowen Fld

Sun 2/8

3:43 pm-6:14 pm

1 stop24h 31m

$365

BaltimoreIdaho Falls

BWI - IDA

BWIIDA

Baltimore/Washington

Sat 1/17

7:14 pm-10:59 pm

1 stop29h 45m

Idaho Falls Fanning Field

Wed 1/21

6:58 pm-6:14 pm

1 stop21h 16m

$432

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 $381. 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.

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

Our data shows that Tuesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $436. On the other hand, Friday is the most expensive day to depart from Baltimore because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $563.

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

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Baltimore to Idaho at noon for as low as $329. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $716 per ticket.

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 $460 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 $354 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 32m
Direct flights	None

The fastest flight from Baltimore to Idaho takes 6h 32m

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 December 2025, 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 $230	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
United Airlines	PriceFrom $298	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $321	Free Cancellation	Rating 8.0 11,496 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $346	Free Cancellation	Rating 8.0 4,254 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.