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Idaho

$101+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 November 13, 2025.

This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 12/47:15 amBWI - GEG
2 stops10h 40mDelta
Sun 12/77:35 pmGEG - BWI
2 stops11h 27mDelta
Deal found 11/12$256
This Delta deal was found by Cheapflights users on 11/11. 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.
Sat 12/69:05 amBWI - BOI
2 stops13h 15mDelta
Sat 12/1311:44 amBOI - BWI
2 stops10h 37mDelta
Deal found 11/11$276
This KAYAK deal was found by Cheapflights users on 11/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:00 amBWI - GEG
1 stop8h 39mAlaska Airlines
Tue 12/167:15 amGEG - BWI
1 stop8h 01mAlaska Airlines
Deal found 11/10$278
This Delta deal was found by Cheapflights users on 11/13. 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.
Fri 12/55:36 pmBWI - GEG
2 stops9h 35mDelta
Mon 12/811:19 amGEG - BWI
2 stops10h 00mDelta
Deal found 11/13$286
This Delta deal was found by Cheapflights users on 11/11. 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 12/106:00 amBWI - GEG
2 stops9h 29mDelta
Wed 12/1711:19 amGEG - BWI
2 stops10h 00mDelta
Deal found 11/11$287
This United Airlines deal was found by Cheapflights users on 11/11. 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 12/104:15 pmBWI - GEG
1 stop7h 44mUnited Airlines
Wed 12/175:25 amGEG - BWI
1 stop6h 46mUnited Airlines
Deal found 11/11$299
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:49 amBWI - GEG
2 stops32h 36mMultiple Airlines
Mon 12/17:54 pmGEG - BWI
1 stop20h 37mMultiple Airlines
Deal found 11/11$303
This Delta deal was found by Cheapflights users on 11/13. 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.
Sat 12/66:00 amBWI - GEG
1 stop9h 14mDelta
Mon 12/811:19 amGEG - BWI
2 stops10h 00mDelta
Deal found 11/13$307
This American Airlines deal was found by Cheapflights users on 11/13. 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.
Sat 12/66:00 amBWI - GEG
1 stop9h 30mAmerican Airlines
Mon 12/81:14 pmGEG - BWI
1 stop7h 38mAmerican Airlines
Deal found 11/13$317
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:00 amBWI - BOI
1 stop10h 34mAlaska Airlines
Wed 12/36:03 amBOI - BWI
1 stop10h 13mAlaska Airlines
Deal found 11/11$321
This Delta deal was found by Cheapflights users on 11/11. 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.
Thu 12/47:02 amBWI - BOI
1 stop7h 52mDelta
Sat 1/101:00 pmBOI - BWI
1 stop8h 42mDelta
Deal found 11/11$322
This Delta deal was found by Cheapflights users on 11/12. 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 12/105:36 pmBWI - GEG
2 stops9h 35mDelta
Mon 12/157:17 pmGEG - BWI
1 stop7h 43mDelta
Deal found 11/12$326

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$256
(Delta)

One-way from

$101
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$370
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 ($94 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 November 13, 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

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 12/10

8:04 am-8:20 pm

2 stops14h 16m

Boise Air Term. Gowen Fld

Wed 12/17

1:54 pm-6:00 am

2 stops14h 06m

$276

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 12/6

9:05 am-6:52 pm

2 stops11h 47m

Boise Air Term. Gowen Fld

Fri 12/12

4:45 pm-6:00 am

2 stops11h 15m

$276

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Fri 12/5

5:36 pm-12:11 am

2 stops9h 35m

Spokane

Mon 12/8

11:19 am-12:19 am

2 stops10h 00m

$286

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 12/10

6:00 am-12:29 pm

2 stops9h 29m

Spokane

Wed 12/17

11:19 am-12:19 am

2 stops10h 00m

$287

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 12/10

4:15 pm-8:59 pm

1 stop7h 44m

Spokane

Wed 12/17

5:25 am-3:11 pm

1 stop6h 46m

$299

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 12/10

9:00 am-4:03 pm

1 stop9h 03m

Boise Air Term. Gowen Fld

Wed 12/17

6:20 am-3:11 pm

1 stop6h 51m

$307

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 2/7

6:05 am-1:05 pm

1 stop10h 00m

Spokane

Thu 2/12

7:10 am-11:49 pm

2 stops13h 39m

$307

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 12/6

6:00 am-12:14 pm

1 stop9h 14m

Spokane

Mon 12/8

11:19 am-12:19 am

2 stops10h 00m

$307

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Fri 1/23

3:00 pm-11:59 pm

2 stops11h 59m

Spokane

Tue 1/27

12:55 pm-12:45 am

1 stop8h 50m

$307

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 12/6

9:05 am-8:20 pm

2 stops13h 15m

Boise Air Term. Gowen Fld

Sat 12/13

3:13 pm-12:21 am

1 stop7h 08m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 60 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 November 13, 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 November 13, 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
11,288 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,288 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,017 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,051 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a 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?

    Delta, United Airlines, and American Airlines can get you from Baltimore to Idaho in just under 7h 44m. Your travel time can differ by up to 6h 32m. 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 Frontier. According to our data, you can fly for as low as $115. Users have also found prices from $148 and $154 on Delta 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 November 13, 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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