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Idaho

$122+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$238
(Mytrip)

One-way from

$122
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$458
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 ($103 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 July 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 julio 3, 2025.

This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/205:45 amBWI - GEG
2 stops32h 18mMultiple Airlines
lun. 8/2512:25 pmGEG - BWI
1 stop15h 29mMultiple Airlines
Deal found 7/1$238
This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/186:30 amBWI - BOI
1 stop12h 41mSpirit Airlines
jue. 8/216:06 pmBOI - BWI
1 stop9h 09mSpirit Airlines
Deal found 6/30$245
This United Airlines deal was found by Cheapflights users on 6/30. 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.
mar. 7/294:20 pmBWI - BOI
1 stop7h 14mUnited Airlines
mar. 8/57:15 pmBOI - BWI
1 stop8h 13mUnited Airlines
Deal found 6/30$287
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/67:37 pmBWI - GEG
1 stop7h 42mAlaska Airlines
mar. 9/1612:10 pmGEG - BWI
1 stop14h 29mAlaska Airlines
Deal found 7/1$296
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/611:04 amBWI - GEG
2 stops10h 35mAmerican Airlines
mar. 9/1612:35 pmGEG - BWI
1 stop7h 47mAmerican Airlines
Deal found 7/1$302
This Sun Country Air deal was found by Cheapflights users on 7/1. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2112:23 pmBWI - GEG
1 stop6h 39mSun Country Air
dom. 8/244:44 pmGEG - BWI
1 stop15h 43mSun Country Air
Deal found 7/1$305
This Hawaiian Airlines deal was found by Cheapflights users on 7/1. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/257:00 amBWI - BOI
1 stop10h 00mHawaiian Airlines
mar. 8/267:17 pmBOI - BWI
1 stop8h 16mHawaiian Airlines
Deal found 7/1$309
This Southwest deal was found by Cheapflights users on 7/1. 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.
mié. 8/206:05 pmBWI - GEG
1 stop7h 25mSouthwest
lun. 8/253:55 pmGEG - BWI
1 stop10h 15mSouthwest
Deal found 7/1$320
This Southwest deal was found by Cheapflights users on 7/1. 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.
mié. 7/306:35 pmBWI - BOI
1 stop7h 50mSouthwest
mié. 8/66:05 pmBOI - BWI
1 stop9h 05mSouthwest
Deal found 7/1$323
This Delta deal was found by Cheapflights users on 7/2. 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.
mar. 8/127:15 amBWI - GEG
1 stop7h 43mDelta
mar. 8/197:25 pmGEG - BWI
2 stops12h 20mDelta
Deal found 7/2$324
This Justfly.com deal was found by Cheapflights users on 7/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/235:26 pmBWI - GEG
1 stop20h 37mFrontier
dom. 7/2711:58 amGEG - BWI
1 stop25h 33mFrontier
Deal found 7/2$328
This Delta deal was found by Cheapflights users on 7/2. 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.
jue. 9/184:39 pmBWI - BOI
2 stops9h 26mDelta
sáb. 9/273:20 pmBOI - BWI
1 stop6h 29mDelta
Deal found 7/2$328

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 julio 3, 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

mié. 8/20

5:45 am-11:03 am

2 stops32h 18m

Spokane

lun. 8/25

12:25 pm-6:54 am

1 stop15h 29m

$238

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

lun. 8/18

6:30 am-5:11 pm

1 stop12h 41m

Boise Air Term. Gowen Fld

jue. 8/21

6:06 pm-5:15 am

1 stop9h 09m

$245

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 7/29

4:20 pm-9:34 pm

1 stop7h 14m

Boise Air Term. Gowen Fld

mar. 8/5

7:15 pm-5:28 am

1 stop8h 13m

$287

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sáb. 9/6

7:37 pm-12:19 am

1 stop7h 42m

Spokane

mar. 9/16

12:10 pm-5:39 am

1 stop14h 29m

$296

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sáb. 9/6

11:04 am-6:39 pm

2 stops10h 35m

Spokane

mar. 9/16

12:35 pm-11:22 pm

1 stop7h 47m

$302

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

jue. 8/21

12:23 pm-4:02 pm

1 stop6h 39m

Spokane

dom. 8/24

4:44 pm-11:27 am

1 stop15h 43m

$305

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

lun. 8/25

7:00 am-3:00 pm

1 stop10h 00m

Boise Air Term. Gowen Fld

mar. 8/26

7:17 pm-5:33 am

1 stop8h 16m

$309

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mié. 8/20

6:05 pm-10:30 pm

1 stop7h 25m

Spokane

lun. 8/25

3:55 pm-5:10 am

1 stop10h 15m

$320

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mié. 7/30

6:35 pm-12:25 am

1 stop7h 50m

Boise Air Term. Gowen Fld

mié. 8/6

6:05 pm-5:10 am

1 stop9h 05m

$323

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mar. 8/12

7:15 am-11:58 am

1 stop7h 43m

Spokane

mar. 8/19

7:25 pm-10:45 am

2 stops12h 20m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 59 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 $398). 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 julio 3, 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.

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 julio 3, 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
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

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

Entertainment

7.1

Overall

8.0

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
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

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 Spirit Airlines. According to our data, you can fly for as low as $122. Users have also found prices from $148 and $149 on Alaska Airlines and American 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 - 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 $398). 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$484FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$644FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$823FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$335Average$495FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$347Average$487FlexibilityNo cancel feeOn-time63%

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