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Idaho

$105+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$199
(Southwest)

One-way from

$105
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$442
From Baltimore/Washington to Idaho
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One-way flight from Baltimore/Washington to Idaho
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Highest demand for flights based on searches. 19% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:05 pmBWI - GEG
1 stop7h 25mSouthwest
Sat 9/136:25 amGEG - BWI
1 stop8h 45mSouthwest
Deal found 6/11$199
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amBWI - GEG
1 stop8h 43mAlaska Airlines
Thu 9/255:46 pmGEG - BWI
1 stop8h 47mAlaska Airlines
Deal found 6/10$210
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/78:54 amBWI - GEG
2 stops35h 08mMultiple Airlines
Mon 8/115:52 pmGEG - BWI
1 stop8h 41mMultiple Airlines
Deal found 6/10$277
This Hawaiian Airlines deal was found by Cheapflights users on 6/9. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:00 amBWI - GEG
1 stop8h 43mHawaiian Airlines
Fri 9/264:35 pmGEG - BWI
1 stop9h 58mHawaiian Airlines
Deal found 6/9$278
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:00 amBWI - BOI
1 stop10h 00mAlaska Airlines
Tue 9/164:34 pmBOI - BWI
1 stop10h 59mAlaska Airlines
Deal found 6/10$287
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:00 amBWI - BOI
1 stop14h 44mSpirit Airlines
Fri 9/199:49 pmBOI - BWI
1 stop24h 21mSpirit Airlines
Deal found 6/11$291
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:00 amBWI - BOI
2 stops10h 01mDelta
Sun 8/3112:45 pmBOI - BWI
1 stop9h 11mDelta
Deal found 6/10$292
This United Airlines deal was found by Cheapflights users on 6/10. 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 9/226:15 amBWI - BOI
1 stop7h 16mUnited Airlines
Wed 9/247:09 pmBOI - BWI
2 stops10h 57mUnited Airlines
Deal found 6/10$297
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:15 amBWI - GEG
1 stop7h 50mDelta
Tue 9/235:00 pmGEG - BWI
2 stops13h 15mDelta
Deal found 6/10$302
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/144:20 pmBWI - GEG
1 stop7h 43mUnited Airlines
Mon 7/286:25 pmGEG - BWI
1 stop7h 45mUnited Airlines
Deal found 6/10$306
This Sun Country Air deal was found by Cheapflights users on 6/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:49 amBWI - BOI
1 stop9h 19mSun Country Air
Sun 8/105:50 pmBOI - BWI
1 stop15h 33mSun Country Air
Deal found 6/11$325
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/135:45 amBWI - IDA
3 stops37h 21mMultiple Airlines
Fri 8/2210:50 pmIDA - BWI
1 stop23h 20mMultiple Airlines
Deal found 6/10$326

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 June 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

Tue 9/9

6:05 pm-10:30 pm

1 stop7h 25m

Spokane

Sat 9/13

6:25 am-6:10 pm

1 stop8h 45m

$199

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 9/16

7:00 am-12:43 pm

1 stop8h 43m

Spokane

Thu 9/25

5:46 pm-5:33 am

1 stop8h 47m

$210

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Thu 8/7

8:54 am-5:02 pm

2 stops35h 08m

Spokane

Mon 8/11

5:52 pm-5:33 am

1 stop8h 41m

$277

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sun 9/21

7:00 am-12:43 pm

1 stop8h 43m

Spokane

Fri 9/26

4:35 pm-5:33 am

1 stop9h 58m

$278

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 9/9

7:00 am-3:00 pm

1 stop10h 00m

Boise Air Term. Gowen Fld

Tue 9/16

4:34 pm-5:33 am

1 stop10h 59m

$287

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Mon 9/15

8:00 am-8:44 pm

1 stop14h 44m

Boise Air Term. Gowen Fld

Fri 9/19

9:49 pm-12:10 am

1 stop24h 21m

$291

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 8/27

6:00 am-2:01 pm

2 stops10h 01m

Boise Air Term. Gowen Fld

Sun 8/31

12:45 pm-11:56 pm

1 stop9h 11m

$292

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Mon 9/22

6:15 am-11:31 am

1 stop7h 16m

Boise Air Term. Gowen Fld

Wed 9/24

7:09 pm-8:06 am

2 stops10h 57m

$297

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 9/16

7:15 am-12:05 pm

1 stop7h 50m

Spokane

Tue 9/23

5:00 pm-9:15 am

2 stops13h 15m

$302

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Mon 7/14

4:20 pm-9:03 pm

1 stop7h 43m

Spokane

Mon 7/28

6:25 pm-5:10 am

1 stop7h 45m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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, October is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $314). Flying from Baltimore to Idaho in June is currently the most expensive (average of $395). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to Idaho as you normally would.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Baltimore to Idaho, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $105. Users have also found prices from $140 and $153 on United Airlines and Sun Country Air, 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 - Spokane or Baltimore/Washington - Boise Air Term. Gowen Fld.

  • 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, October is the cheapest month in which you can book a flight from Baltimore to Idaho (average of $314). Flying from Baltimore to Idaho in June is currently the most expensive (average of $395). 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 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$471FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$655FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$823FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$347Average$488FlexibilityNo cancel feeOn-time63%

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