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Idaho

$125+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
déc. 21 — déc. 281
dim. 12/21
dim. 12/28
1 adult, Economy
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Find 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 novembre 21, 2025.

This Delta deal was found by Cheapflights users on 11/20. 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.
jeu. 12/117:15 amBWI - BOI
2 stops10h 47mDelta
lun. 12/154:45 pmBOI - BWI
2 stops11h 15mDelta
Deal found 11/20$276
This Delta deal was found by Cheapflights users on 11/18. 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.
mer. 12/37:15 amBWI - GEG
1 stop7h 55mDelta
mar. 12/95:05 amGEG - BWI
2 stops14h 58mDelta
Deal found 11/18$286
This Delta deal was found by Cheapflights users on 11/18. 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.
mer. 12/310:28 amBWI - GEG
2 stops12h 42mDelta
mer. 12/105:05 amGEG - BWI
2 stops16h 17mDelta
Deal found 11/18$291
This Delta deal was found by Cheapflights users on 11/20. 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.
mar. 12/97:15 amBWI - BOI
1 stop6h 47mDelta
lun. 12/1511:44 amBOI - BWI
2 stops20h 18mDelta
Deal found 11/20$291
This Delta deal was found by Cheapflights users on 11/19. 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.
mer. 12/106:00 amBWI - GEG
1 stop9h 02mDelta
lun. 12/157:17 pmGEG - BWI
1 stop7h 43mDelta
Deal found 11/19$292
This Delta deal was found by Cheapflights users on 11/20. 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.
ven. 12/126:00 amBWI - BOI
2 stops16h 20mDelta
lun. 12/159:00 amBOI - BWI
2 stops23h 02mDelta
Deal found 11/20$297
This Delta deal was found by Cheapflights users on 11/18. 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.
sam. 12/66:00 amBWI - GEG
1 stop9h 14mDelta
mer. 12/107:17 pmGEG - BWI
1 stop7h 43mDelta
Deal found 11/18$308
This Delta deal was found by Cheapflights users on 11/20. 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.
sam. 12/62:41 pmBWI - GEG
2 stops11h 03mDelta
sam. 12/131:12 pmGEG - BWI
1 stop8h 10mDelta
Deal found 11/20$313
This Delta deal was found by Cheapflights users on 11/18. 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.
mer. 12/37:15 amBWI - GEG
1 stop7h 55mDelta
sam. 12/61:11 pmGEG - BWI
1 stop8h 10mDelta
Deal found 11/18$317
This United Airlines deal was found by Cheapflights users on 11/19. 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.
mer. 12/178:20 amBWI - BOI
2 stops12h 54mUnited Airlines
mer. 12/242:40 pmBOI - BWI
1 stop6h 36mUnited Airlines
Deal found 11/19$322
This Delta deal was found by Cheapflights users on 11/18. 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.
mar. 12/910:28 amBWI - JAC
2 stops13h 01mDelta
sam. 12/202:31 pmJAC - BWI
1 stop6h 13mDelta
Deal found 11/18$324
This Delta deal was found by Cheapflights users on 11/20. 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.
sam. 12/136:00 amBWI - BOI
2 stops18h 16mDelta
lun. 12/153:13 pmBOI - BWI
1 stop7h 08mDelta
Deal found 11/20$330

Cheap flight deals from Baltimore to Idaho

Keep the following information in mind while searching for Baltimore to Idaho flight deals. Data was last updated novembre 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$125
(Delta)

Popular in

December

Cheapest in

April

Average price

$373
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
Search Deals
From Baltimore/Washington to Idaho
Search Deals
One-way flight from Baltimore/Washington to Idaho
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 novembre 21, 2025.
Use the filters below to find and compare flights from Baltimore to Idaho that are best for you.

Fly from

Baltimore

Fly to

Idaho

Route

Depart

Return

Price

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sam. 1/17

7:00 am-12:07 pm

1 stop8h 07m

Spokane

mer. 1/21

12:55 pm-12:41 am

1 stop8h 46m

$249

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sam. 2/7

6:05 am-1:03 pm

1 stop9h 58m

Spokane

jeu. 2/12

7:10 am-11:49 pm

2 stops13h 39m

$282

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sam. 12/6

7:15 am-12:10 pm

1 stop7h 55m

Spokane

mer. 12/10

5:05 am-12:22 am

2 stops16h 17m

$286

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mer. 12/3

7:15 am-12:10 pm

1 stop7h 55m

Spokane

mer. 12/10

6:05 am-12:22 am

2 stops15h 17m

$286

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

sam. 1/10

6:05 am-12:34 pm

1 stop8h 29m

Jackson Hole

mer. 1/14

12:58 pm-11:44 pm

1 stop8h 46m

$289

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mer. 12/3

12:19 pm-8:10 pm

2 stops10h 51m

Spokane

mar. 12/9

11:19 am-10:47 am

2 stops20h 28m

$291

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 12/9

7:15 am-12:02 pm

1 stop6h 47m

Boise Air Term. Gowen Fld

lun. 12/15

11:44 am-10:02 am

2 stops20h 18m

$291

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mer. 12/10

7:06 pm-12:09 am

1 stop7h 03m

Boise Air Term. Gowen Fld

lun. 12/15

9:00 am-10:02 am

2 stops23h 02m

$291

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mer. 12/10

6:00 am-12:02 pm

1 stop9h 02m

Spokane

lun. 12/15

7:17 pm-6:00 am

1 stop7h 43m

$292

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

jeu. 1/8

3:00 pm-9:57 am

2 stops20h 57m

Boise Air Term. Gowen Fld

lun. 1/12

10:39 am-10:27 am

2 stops21h 48m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 57 results
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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 January is currently the most expensive (average of $335). 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.

What is the cheapest time of day to fly from BWI to ID?

Find hourly flight availability from Baltimore to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated novembre 21, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 54% on flights from Baltimore to Idaho by exploring options for tickets at noon.

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 novembre 21, 2025.
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.
Alaska Airlines
8.0
Very good
11,326 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Alaska Airlines
8.0
Very good
11,326 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Southwest
8.0
Very good
4,251 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Delta
7.9
Good
8,002 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
United Airlines
7.4
Good
9,028 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
American Airlines
7.2
Good
11,047 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.

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?

    Delta, American Airlines, and Alaska Airlines can get you from Baltimore to Idaho in just under 8h 07m. Your travel time can differ by up to 21h 01m. The distance between Baltimore and Idaho is about 2105 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 $125. Users have also found prices from $154 and $154 on American Airlines and United Airlines, respectively.

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

    The most popular route from Baltimore to Idaho is Baltimore/Washington - Jackson Hole. You may also consider Baltimore/Washington - Boise Air Term. Gowen Fld or Baltimore/Washington - Spokane.

  • 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 January is currently the most expensive (average of $335). 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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Top 5 airlines flying from Baltimore to Idaho

Discover the top 5 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 novembre 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$549FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$603FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$372FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$334Average$823FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$347Average$485FlexibilityNo cancel feeOn-time63%

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