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Idaho

$117+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(United Airlines)

One-way from

$117
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$455
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
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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. 15% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 15, 2026.

This Delta deal was found by Cheapflights users on 1/13. 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.
Tue 2/176:00 am
BWI
-
GEG
1 stop8h 35m
Delta
Wed 2/251:20 pm
GEG
-
BWI
1 stop7h 24m
Delta
Deal found 1/13$257
This Delta deal was found by Cheapflights users on 1/15. 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 4/86:15 am
BWI
-
BOI
1 stop9h 50m
Delta
Tue 4/143:03 pm
BOI
-
BWI
1 stop6h 23m
Delta
Deal found 1/15$257
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/1110:05 am
BWI
-
GEG
2 stops14h 17m
United Airlines
Wed 2/185:00 am
GEG
-
BWI
1 stop7h 07m
United Airlines
Deal found 1/14$262
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1110:05 am
BWI
-
BOI
2 stops13h 47m
United Airlines
Wed 2/182:40 pm
BOI
-
BWI
1 stop6h 45m
United Airlines
Deal found 1/13$262
This Delta deal was found by Cheapflights users on 1/13. 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.
Wed 2/114:45 pm
BWI
-
GEG
2 stops10h 14m
Delta
Wed 2/187:30 pm
GEG
-
BWI
2 stops12h 02m
Delta
Deal found 1/13$268
This Delta deal was found by Cheapflights users on 1/15. 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 4/115:40 am
BWI
-
BOI
2 stops10h 25m
Delta
Tue 4/146:00 am
BOI
-
BWI
2 stops10h 01m
Delta
Deal found 1/15$268
This Delta deal was found by Cheapflights users on 1/14. 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.
Mon 2/97:00 am
BWI
-
JAC
1 stop6h 58m
Delta
Sat 2/141:05 pm
JAC
-
BWI
1 stop8h 39m
Delta
Deal found 1/14$289
This Delta deal was found by Cheapflights users on 1/15. 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.
Mon 2/26:00 am
BWI
-
JAC
1 stop9h 30m
Delta
Thu 2/121:05 pm
JAC
-
BWI
1 stop8h 39m
Delta
Deal found 1/15$293
This Delta deal was found by Cheapflights users on 1/15. 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 2/187:05 am
BWI
-
BOI
2 stops13h 17m
Delta
Mon 2/237:15 pm
BOI
-
BWI
2 stops13h 17m
Delta
Deal found 1/15$296
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:46 pm
BWI
-
GEG
1 stop8h 13m
Alaska Airlines
Wed 2/257:05 am
GEG
-
BWI
1 stop7h 41m
Alaska Airlines
Deal found 1/13$297
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/174:09 pm
BWI
-
BOI
1 stop9h 14m
United Airlines
Thu 2/192:40 pm
BOI
-
BWI
1 stop6h 45m
United Airlines
Deal found 1/14$297
This United Airlines deal was found by Cheapflights users on 1/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:10 pm
BWI
-
SUN
1 stop7h 01m
United Airlines
Tue 10/272:29 pm
SUN
-
BWI
1 stop6h 31m
United Airlines
Deal found 1/12$297

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 January 15, 2026.
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

Wed 2/18

7:05 am-12:07 pm

1 stop8h 02m

Spokane

Sat 2/21

2:05 pm-11:12 pm

1 stop6h 07m

$257

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 2/18

6:46 pm-11:59 pm

1 stop8h 13m

Spokane

Tue 2/24

5:40 am-5:46 pm

1 stop9h 06m

$257

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 2/11

4:10 pm-9:52 pm

1 stop7h 42m

Boise Air Term. Gowen Fld

Wed 2/18

2:40 pm-11:25 pm

1 stop6h 45m

$257

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Tue 2/17

6:00 am-11:35 am

1 stop8h 35m

Spokane

Sat 2/21

2:05 pm-11:12 pm

1 stop6h 07m

$257

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Wed 4/15

7:00 am-12:01 pm

1 stop8h 01m

Spokane

Wed 4/22

2:08 pm-11:26 pm

1 stop6h 18m

$257

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

Sat 2/14

6:00 am-11:35 am

1 stop8h 35m

Spokane

Sat 3/7

2:05 pm-11:12 pm

1 stop6h 07m

$257

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 4/8

6:15 am-2:05 pm

1 stop9h 50m

Boise Air Term. Gowen Fld

Tue 4/14

3:03 pm-11:26 pm

1 stop6h 23m

$257

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 4/11

5:40 am-2:05 pm

2 stops10h 25m

Boise Air Term. Gowen Fld

Tue 4/14

11:36 pm-9:36 am

1 stop8h 00m

$262

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Mon 2/9

7:22 am-1:30 pm

1 stop8h 08m

Jackson Hole

Sat 2/14

1:05 pm-11:44 pm

1 stop8h 39m

$289

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Mon 2/9

8:23 am-3:18 pm

1 stop8h 55m

Jackson Hole

Sat 2/14

7:00 am-9:17 pm

2 stops12h 17m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

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 November is currently the most expensive (average of $301). 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.

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 January 15, 2026.
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
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,721 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,258 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,051 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,164 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 42m. Your travel time can differ by up to 31m. 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 $118. Users have also found prices from $197 and $197 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 - 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, 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 November is currently the most expensive (average of $301). 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$444FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$611FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$372FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$346Average$481FlexibilityNo cancel feeOn-time63%

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