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Idaho

$154+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:55 amBWI - BOI
1 stop10h 08mUnited Airlines
Sat 1/247:05 pmBOI - BWI
1 stop10h 02mUnited Airlines
Deal found 12/10$324
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:15 amBWI - BOI
1 stop7h 21mUnited Airlines
Sat 1/2410:15 amBOI - BWI
1 stop9h 11mUnited Airlines
Deal found 12/10$404
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Mon 12/226:15 amBWI - SUN
1 stop7h 57mUnited Airlines
Fri 12/2612:53 pmSUN - BWI
1 stop6h 33mUnited Airlines
Deal found 12/9$445
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:30 amBWI - BOI
1 stop11h 38mUnited Airlines
Mon 12/296:55 pmBOI - BWI
1 stop8h 19mUnited Airlines
Deal found 12/10$449
This Southwest deal was found by Cheapflights users on 12/9. 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.
Wed 12/245:50 pmBWI - GEG
1 stop7h 35mSouthwest
Wed 1/1412:10 pmGEG - BWI
1 stop6h 55mSouthwest
Deal found 12/9$457
This Southwest deal was found by Cheapflights users on 12/9. 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.
Wed 12/245:50 pmBWI - GEG
1 stop7h 35mSouthwest
Thu 1/155:35 amGEG - BWI
1 stop10h 40mSouthwest
Deal found 12/9$458
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Mon 12/226:15 amBWI - SUN
1 stop7h 57mUnited Airlines
Wed 12/242:15 pmSUN - BWI
1 stop7h 01mUnited Airlines
Deal found 12/9$466
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Thu 12/259:55 amBWI - GEG
1 stop8h 24mUnited Airlines
Thu 1/15:05 amGEG - BWI
1 stop6h 54mUnited Airlines
Deal found 12/9$470
This Southwest deal was found by Cheapflights users on 12/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:25 amBWI - BOI
2 stops10h 40mSouthwest
Sat 1/246:50 amBOI - BWI
2 stops10h 55mSouthwest
Deal found 12/10$488
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:05 pmBWI - JAC
1 stop6h 47mUnited Airlines
Tue 12/302:15 pmJAC - BWI
2 stops14h 05mUnited Airlines
Deal found 12/10$529
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Thu 12/259:55 amBWI - GEG
1 stop8h 24mUnited Airlines
Wed 12/311:47 pmGEG - BWI
2 stops24h 11mUnited Airlines
Deal found 12/9$542
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:15 pmBWI - JAC
1 stop6h 22mUnited Airlines
Sat 12/202:30 pmJAC - BWI
1 stop6h 46mUnited Airlines
Deal found 12/10$544

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$276
(Delta)

One-way from

$154
(Delta)

Popular in

December

Cheapest in

April

Average price

$631
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. 14% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 12, 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

Sat 1/31

6:00 am-6:47 pm

2 stops15h 47m

Spokane

Thu 2/5

7:20 am-11:44 pm

2 stops13h 24m

$276

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Mon 2/2

3:00 pm-11:59 pm

2 stops11h 59m

Spokane

Sat 2/7

3:40 pm-10:05 am

2 stops15h 25m

$276

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 1/31

6:00 am-12:37 pm

2 stops9h 37m

Spokane

Mon 2/2

3:40 pm-10:27 am

2 stops15h 47m

$276

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Fri 2/6

3:00 pm-10:52 pm

2 stops10h 52m

Spokane

Wed 2/11

9:20 am-11:05 pm

2 stops10h 45m

$276

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 2/11

7:00 am-4:17 pm

2 stops11h 17m

Boise Air Term. Gowen Fld

Sat 2/14

3:01 pm-11:12 pm

1 stop6h 11m

$288

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Tue 3/10

8:02 am-3:16 pm

1 stop9h 14m

Jackson Hole

Tue 3/17

2:33 pm-11:19 pm

1 stop6h 46m

$289

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Fri 1/9

4:10 pm-8:42 pm

1 stop6h 32m

Jackson Hole

Fri 1/16

2:40 pm-11:15 pm

1 stop6h 35m

$289

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Thu 1/8

7:00 am-11:58 am

1 stop6h 58m

Jackson Hole

Thu 1/15

12:58 pm-11:44 pm

1 stop8h 46m

$289

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Thu 1/8

10:05 am-8:42 pm

2 stops12h 37m

Jackson Hole

Thu 1/15

2:40 pm-11:15 pm

1 stop6h 35m

$294

BaltimoreHailey

BWI - SUN

BWISUN

Baltimore/Washington

Mon 2/23

6:46 pm-11:10 am

1 stop18h 24m

Hailey Sun Valley-Friedman

Wed 2/25

7:04 pm-5:46 pm

1 stop20h 42m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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 February is currently the most expensive (average of $323). 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 December 12, 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 December 12, 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
11,432 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,253 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,095 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 Alaska Airlines can get you from Baltimore to Idaho in just under 9h 14m. Your travel time can differ by up to 9h 10m. 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 $158 and $208 on United Airlines and Southwest, 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 - Hailey Sun Valley-Friedman.

  • 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 $323). 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.
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$200Average$541FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$609FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$372FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$334Average$823FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$482FlexibilityNo cancel feeOn-time63%

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