Idaho

$117+ Cheap flights from Baltimore (BWI) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Mar 31 — Apr 71
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Cheap flight deals from Baltimore to Idaho

Cheapest flights from Baltimore to Idaho
Explore the most affordable flight options available from Baltimore to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 1, 2026.

This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:39 am
BWI
-
GEG
1 stop9h 53m
American Airlines
Tue 4/281:22 pm
GEG
-
BWI
1 stop7h 34m
American Airlines
Deal found 2/25$233
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:03 am
BWI
-
GEG
2 stops10h 01m
Delta
Tue 4/2812:36 pm
GEG
-
BWI
1 stop9h 02m
Delta
Deal found 2/25$238
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:23 am
BWI
-
BOI
2 stops12h 25m
United Airlines
Tue 4/212:37 pm
BOI
-
BWI
1 stop6h 47m
United Airlines
Deal found 2/25$238
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:11 am
BWI
-
BOI
2 stops11h 49m
Delta
Tue 4/218:40 pm
BOI
-
BWI
2 stops10h 31m
Delta
Deal found 2/25$243
This United Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:18 pm
BWI
-
BOI
1 stop8h 17m
United Airlines
Sat 4/112:37 pm
BOI
-
BWI
1 stop6h 47m
United Airlines
Deal found 2/26$285
This American Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 am
BWI
-
JAC
1 stop8h 38m
American Airlines
Thu 4/21:44 pm
JAC
-
BWI
1 stop7h 49m
American Airlines
Deal found 2/27$297
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:00 am
BWI
-
JAC
1 stop7h 17m
United Airlines
Tue 4/142:35 pm
JAC
-
BWI
1 stop6h 49m
United Airlines
Deal found 2/27$303
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:18 am
BWI
-
BOI
2 stops10h 42m
Delta
Thu 5/78:56 am
BOI
-
BWI
2 stops12h 21m
Delta
Deal found 2/26$304
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:25 pm
BWI
-
BOI
1 stop8h 25m
Southwest
Tue 4/72:05 pm
BOI
-
BWI
1 stop8h 20m
Southwest
Deal found 3/1$307
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:15 am
BWI
-
JAC
1 stop7h 14m
United Airlines
Sun 11/82:40 pm
JAC
-
BWI
1 stop6h 20m
United Airlines
Deal found 2/28$309
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:45 am
BWI
-
GEG
2 stops12h 44m
Delta
Sat 4/182:10 pm
GEG
-
BWI
1 stop6h 16m
Delta
Deal found 2/27$312
This Delta deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:15 am
BWI
-
JAC
1 stop6h 59m
Delta
Sat 5/911:35 am
JAC
-
BWI
2 stops11h 22m
Delta
Deal found 2/28$314

Find flight deals from Baltimore to Idaho

Keep the following information in mind while searching for Baltimore to Idaho flight deals. Data was last updated March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$233
(American Airlines)

One-way from

$117
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$452
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
From Baltimore/Washington to Idaho
One-way flight from Baltimore/Washington to Idaho
Highest demand for flights based on searches. 12% potential increase in price ($59 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Idaho 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, Cheapflights users made 2,558,603 searches. Data last updated March 1, 2026.
Use the filters below to find and compare flights from Baltimore to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Wed 4/1

6:00 am-11:17 am

1 stop7h 17m

Jackson Hole

Tue 4/14

2:35 pm-11:24 pm

1 stop6h 49m

$303

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 3/31

5:25 pm-11:50 pm

1 stop8h 25m

Boise Air Term. Gowen Fld

Tue 4/7

5:15 pm-5:20 am

2 stops10h 05m

$332

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 7/14

7:10 am-12:02 pm

1 stop7h 52m

Spokane

Sat 7/18

11:33 am-11:44 pm

1 stop9h 11m

$337

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Fri 5/1

6:30 pm-12:30 am

1 stop9h 00m

Spokane

Mon 5/4

5:35 pm-5:40 am

1 stop9h 05m

$348

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 7/14

7:10 am-12:02 pm

1 stop7h 52m

Spokane

Mon 7/20

7:07 pm-6:03 am

1 stop7h 56m

$362

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 4/28

7:04 am-1:52 pm

1 stop8h 48m

Boise Air Term. Gowen Fld

Thu 5/7

12:15 pm-5:44 am

1 stop15h 29m

$369

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 6/3

12:30 pm-10:49 pm

2 stops13h 19m

Spokane

Mon 6/8

7:21 pm-8:31 am

2 stops10h 10m

$372

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Fri 5/29

4:17 pm-11:06 pm

1 stop9h 49m

Spokane

Mon 6/1

8:38 pm-6:35 pm

1 stop18h 57m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Baltimore to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Idaho

What is the cheapest month to book a flight from Baltimore to Idaho?

Currently, September is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $150). Flying from Baltimore to Idaho in February is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated March 1, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Baltimore to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Baltimore to Idaho?

    Most people fly from Baltimore/Washington (BWI) if they book a flight from Baltimore to Idaho. Baltimore/Washington is conveniently located just 8.5 mi from Baltimore’s city center.

  • How long is the flight from Baltimore to Idaho?

    United Airlines, Southwest, and Delta can get you from Baltimore to Idaho in just under 7h 17m. Your travel time can differ by up to 1h 43m. The distance between Baltimore and Idaho is about 1778 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Baltimore to Idaho one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $118. Users have also found prices from $164 and $197 on United Airlines and Southwest, respectively.

  • What are the most popular routes from Baltimore to Idaho?

  • Can I find deals for flights from Baltimore to Idaho that include hotel bookings?

    Yes. In addition to deals on Baltimore to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Idaho.

  • Can I find deals for business class flights from Baltimore to Idaho?

    Yes. Cheapflights offers flight deals from Baltimore to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Idaho?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $150). Flying from Baltimore to Idaho in February is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Baltimore to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Baltimore to Idaho

Discover the top 4 airlines that operate flights from Baltimore to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$450FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$586FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$372FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$342Average$478FlexibilityNo cancel feeOn-time63%

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