HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
fev 26 — mar 51
qui 2/26
qui 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 janeiro 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
ter 4/214:18 pm
BWI
-
GEG
1 stop7h 53m
United Airlines
ter 4/281:43 pm
GEG
-
BWI
1 stop6h 41m
United Airlines
Deal found 1/26$257
This Delta deal was found by Cheapflights users on 1/26. 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.
ter 2/242:58 pm
BWI
-
BOI
1 stop7h 57m
Delta
ter 3/101:40 pm
BOI
-
BWI
1 stop9h 13m
Delta
Deal found 1/26$257
This Delta deal was found by Cheapflights users on 1/26. 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.
ter 4/217:00 am
BWI
-
GEG
2 stops12h 30m
Delta
ter 4/285:10 pm
GEG
-
BWI
1 stop9h 50m
Delta
Deal found 1/26$262
This Delta deal was found by Cheapflights users on 1/26. 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.
qua 4/297:15 am
BWI
-
JAC
1 stop6h 49m
Delta
sáb 5/21:00 pm
JAC
-
BWI
1 stop8h 25m
Delta
Deal found 1/26$289
This United Airlines deal was found by Cheapflights users on 1/25. 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.
ter 6/237:00 am
BWI
-
JAC
1 stop8h 49m
United Airlines
sáb 7/48:00 am
JAC
-
BWI
2 stops10h 57m
United Airlines
Deal found 1/25$294
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
qui 2/196:46 pm
BWI
-
GEG
1 stop8h 13m
Alaska Airlines
sáb 2/285:40 am
GEG
-
BWI
1 stop9h 06m
Alaska Airlines
Deal found 1/26$297
This Delta deal was found by Cheapflights users on 1/24. 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.
qua 2/182:58 pm
BWI
-
BOI
1 stop7h 57m
Delta
seg 2/232:54 pm
BOI
-
BWI
1 stop6h 53m
Delta
Deal found 1/24$297
This American Airlines deal was found by Cheapflights users on 1/26. 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.
qua 3/115:00 am
BWI
-
SUN
1 stop9h 54m
American Airlines
ter 3/171:27 pm
SUN
-
BWI
1 stop8h 06m
American Airlines
Deal found 1/26$297
This Delta deal was found by Cheapflights users on 1/26. 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.
qua 2/256:05 am
BWI
-
BOI
1 stop9h 54m
Delta
ter 3/101:40 pm
BOI
-
BWI
1 stop9h 13m
Delta
Deal found 1/26$300
This American Airlines deal was found by Cheapflights users on 1/24. 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.
ter 2/1712:38 pm
BWI
-
SUN
2 stops11h 24m
American Airlines
ter 2/241:27 pm
SUN
-
BWI
1 stop8h 06m
American Airlines
Deal found 1/24$302
This United Airlines deal was found by Cheapflights users on 1/25. 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.
ter 8/188:15 am
BWI
-
JAC
1 stop8h 57m
United Airlines
ter 8/251:45 pm
JAC
-
BWI
1 stop7h 15m
United Airlines
Deal found 1/25$305
This United Airlines deal was found by Cheapflights users on 1/26. 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.
sáb 10/3110:00 am
BWI
-
IDA
1 stop9h 22m
United Airlines
qua 11/42:35 pm
IDA
-
BWI
1 stop6h 25m
United Airlines
Deal found 1/26$309

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 janeiro 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
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.
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. 15% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 janeiro 27, 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

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

sáb 2/28

6:05 am-1:59 pm

1 stop9h 54m

Boise Air Term. Gowen Fld

ter 3/10

3:01 pm-11:59 pm

1 stop6h 58m

$257

BaltimoreHailey

BWI - SUN

BWISUN

Baltimore/Washington

qua 3/11

5:00 am-12:54 pm

1 stop9h 54m

Hailey Sun Valley-Friedman

ter 3/17

1:27 pm-11:33 pm

1 stop8h 06m

$297

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

qua 2/18

2:58 pm-8:55 pm

1 stop7h 57m

Boise Air Term. Gowen Fld

seg 2/23

2:54 pm-11:47 pm

1 stop6h 53m

$297

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

qua 2/25

6:05 am-1:59 pm

1 stop9h 54m

Boise Air Term. Gowen Fld

sáb 3/7

3:01 pm-11:12 pm

1 stop6h 11m

$300

BaltimoreHailey

BWI - SUN

BWISUN

Baltimore/Washington

ter 2/17

12:38 pm-10:02 pm

2 stops11h 24m

Hailey Sun Valley-Friedman

ter 2/24

1:27 pm-11:33 pm

1 stop8h 06m

$302

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

ter 2/24

11:45 am-9:56 pm

2 stops12h 11m

Boise Air Term. Gowen Fld

qui 3/5

2:54 pm-11:47 pm

1 stop6h 53m

$302

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

seg 2/23

6:05 am-1:58 pm

1 stop9h 53m

Boise Air Term. Gowen Fld

sáb 3/7

3:01 pm-11:12 pm

1 stop6h 11m

$318

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

sáb 4/25

6:05 am-3:24 pm

1 stop11h 19m

Boise Air Term. Gowen Fld

seg 4/27

7:03 pm-6:00 am

1 stop8h 57m

$321

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sex 2/20

6:46 pm-11:59 pm

1 stop8h 13m

Spokane

sáb 2/28

7:05 am-5:46 pm

1 stop7h 41m

$322

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

seg 2/9

6:00 am-1:30 pm

1 stop9h 30m

Jackson Hole

sáb 2/14

1:05 pm-11:44 pm

1 stop8h 39m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
1
2
3
...
6

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 $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 janeiro 27, 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
11,795 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

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
11,795 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

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
4,268 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

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
8,119 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

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
9,205 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

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, American Airlines, and Alaska Airlines can get you from Baltimore to Idaho in just under 8h 13m. Your travel time can differ by up to 1h 41m. The distance between Baltimore and Idaho is about 2105 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 $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 - 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 February 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Miami flights
Reagan-National to Miami flights
Philadelphia to Miami flights
Dulles Intl to Las Vegas flights
Baltimore to Fort Lauderdale flights
Philadelphia to Fort Lauderdale flights
Dulles Intl to Orlando flights
Philadelphia to Orlando flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to Orlando flights
Baltimore to Miami flights
Dulles Intl to Fort Lauderdale flights
Baltimore to Orlando flights
Reagan-National to Los Angeles flights
Dulles Intl to Los Angeles flights
Philadelphia to Tampa flights
Baltimore to Los Angeles flights
Reagan-National to Las Vegas flights
Dulles Intl to Tampa flights
Baltimore to Las Vegas flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Seattle flights
Dulles Intl to Sky Harbor Intl flights
Dulles Intl to Atlanta flights
Reagan-National to Seattle flights
Baltimore to Dallas/Fort Worth flights
Reagan-National to Hobby flights
Reagan-National to San Francisco flights
Baltimore to Atlanta flights
Philadelphia to Las Vegas flights
Dulles Intl to New Orleans flights
Baltimore to San Francisco flights
Dulles Intl to San Francisco flights
Dulles Intl to Hobby flights
Baltimore to Denver flights
Philadelphia to Hobby flights
Dulles Intl to Denver flights
Reagan-National to Atlanta flights
Reagan-National to O'Hare Intl flights
Philadelphia to Atlanta flights
Dulles Intl to O'Hare Intl flights
Baltimore to O'Hare Intl flights
Dulles Intl to Salt Lake City flights
Philadelphia to Denver flights
Reagan-National to Tampa flights
Reagan-National to Dallas/Fort Worth flights
Philadelphia to George Bush Intcntl flights
Baltimore to Seattle flights
Reagan-National to George Bush Intcntl flights
Philadelphia to Dallas/Fort Worth flights

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 janeiro 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$445FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$608FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$372FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$346Average$483FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.