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Idaho

$90+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 4, 2025.

This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:42 amBWI - JAC
2 stops11h 47mDelta
Sun 12/212:31 pmJAC - BWI
1 stop8h 12mDelta
Deal found 12/1$354
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/178:20 amBWI - SUN
1 stop7h 17mUnited Airlines
Sun 12/212:15 pmSUN - BWI
1 stop7h 01mUnited Airlines
Deal found 12/2$359
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/189:55 amBWI - JAC
1 stop9h 30mUnited Airlines
Mon 12/222:30 pmJAC - BWI
1 stop6h 46mUnited Airlines
Deal found 12/3$359
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/167:48 amBWI - GEG
1 stop7h 42mAmerican Airlines
Sat 12/201:45 pmGEG - BWI
1 stop7h 07mAmerican Airlines
Deal found 12/2$437
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/239:55 amBWI - JAC
1 stop9h 30mUnited Airlines
Mon 12/292:15 pmJAC - BWI
2 stops14h 05mUnited Airlines
Deal found 12/3$438
This Southwest deal was found by Cheapflights users on 12/1. 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 12/307:35 pmBWI - GEG
1 stop8h 30mSouthwest
Tue 1/612:10 pmGEG - BWI
1 stop6h 55mSouthwest
Deal found 12/1$440
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/168:20 amBWI - GEG
2 stops13h 24mUnited Airlines
Sat 12/201:47 pmGEG - BWI
1 stop6h 29mUnited Airlines
Deal found 12/2$442
This Southwest deal was found by Cheapflights users on 12/2. 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.
Thu 12/256:15 amBWI - BOI
1 stop9h 50mSouthwest
Wed 12/315:50 pmBOI - BWI
1 stop9h 55mSouthwest
Deal found 12/2$452
This Southwest deal was found by Cheapflights users on 12/3. 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 12/1710:20 amBWI - BOI
1 stop8h 50mSouthwest
Sun 12/215:25 pmBOI - BWI
1 stop6h 05mSouthwest
Deal found 12/3$472
This Delta deal was found by Cheapflights users on 12/2. 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 12/107:15 amBWI - JAC
1 stop6h 45mDelta
Mon 12/1512:55 pmJAC - BWI
2 stops9h 24mDelta
Deal found 12/2$484
This Southwest deal was found by Cheapflights users on 12/1. 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.
Thu 12/252:45 pmBWI - GEG
2 stops10h 15mSouthwest
Wed 12/313:15 pmGEG - BWI
1 stop11h 30mSouthwest
Deal found 12/1$488
This United Airlines deal was found by Cheapflights users on 12/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:15 amBWI - GEG
1 stop7h 30mUnited Airlines
Wed 12/311:47 pmGEG - BWI
1 stop6h 29mUnited Airlines
Deal found 12/1$489

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 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(American Airlines)

One-way from

$90
(Southwest)

Popular in

December

Cheapest in

April

Average price

$792
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. 20% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($34 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 4, 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

Thu 1/15

3:00 pm-7:54 pm

1 stop7h 54m

Spokane

Tue 1/20

2:00 pm-11:26 pm

1 stop6h 26m

$217

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Mon 2/2

5:25 pm-11:59 pm

2 stops9h 34m

Spokane

Tue 2/10

2:00 pm-11:26 pm

1 stop6h 26m

$222

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Thu 1/15

3:00 pm-7:54 pm

1 stop7h 54m

Spokane

Wed 1/21

9:55 am-11:26 pm

2 stops10h 31m

$222

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 2/14

6:46 pm-11:59 pm

1 stop8h 13m

Spokane

Tue 2/17

8:29 pm-5:46 pm

1 stop18h 17m

$223

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 1/24

8:23 am-1:35 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Thu 1/29

10:15 am-11:15 pm

2 stops11h 00m

$234

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Thu 1/8

7:00 am-12:09 pm

1 stop7h 09m

Boise Air Term. Gowen Fld

Mon 1/12

6:15 pm-10:19 am

2 stops14h 04m

$234

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Mon 2/23

6:46 pm-11:59 pm

1 stop8h 13m

Spokane

Thu 2/26

7:05 am-5:46 pm

1 stop7h 41m

$236

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Thu 1/22

6:05 am-1:03 pm

1 stop9h 58m

Spokane

Sat 1/24

1:15 pm-11:44 pm

1 stop7h 29m

$237

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 2/17

6:00 am-11:35 am

1 stop8h 35m

Spokane

Fri 2/27

2:05 pm-11:47 pm

1 stop6h 42m

$243

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 1/14

7:35 am-3:20 pm

1 stop9h 45m

Boise Air Term. Gowen Fld

Sat 1/17

11:50 am-10:20 pm

1 stop8h 30m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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 December 4, 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 4, 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
11,402 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Alaska Airlines
8.0
Very good
11,402 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Southwest
8.0
Very good
4,250 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
United Airlines
7.4
Good
9,066 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
American Airlines
7.2
Good
11,047 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.

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, Alaska Airlines, and United Airlines can get you from Baltimore to Idaho in just under 7h 12m. Your travel time can differ by up to 1h 01m. The distance between Baltimore and Idaho is about 2052 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 $143. 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 - 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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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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$547FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$610FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$372FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$334Average$823FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$483FlexibilityNo cancel feeOn-time63%

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