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Idaho

$134+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BOI
abr. 24 — may. 11
vie. 4/24
vie. 5/1
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 marzo 25, 2026.

This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/214:18 pm
BWI
-
GEG
1 stop7h 53m
United Airlines
mar. 4/281:46 pm
GEG
-
BWI
1 stop6h 38m
United Airlines
Deal found 3/24$257
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/212:50 pm
BWI
-
GEG
2 stops11h 05m
Southwest
mar. 4/281:45 pm
GEG
-
BWI
1 stop7h 05m
Southwest
Deal found 3/24$262
This Delta deal was found by Cheapflights users on 3/24. 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.
mar. 4/215:37 pm
BWI
-
GEG
2 stops9h 43m
Delta
mar. 4/286:00 am
GEG
-
BWI
2 stops11h 17m
Delta
Deal found 3/24$267
This Southwest deal was found by Cheapflights users on 3/23. 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.
mar. 4/146:25 pm
BWI
-
BOI
1 stop8h 00m
Southwest
mar. 4/212:00 pm
BOI
-
BWI
1 stop8h 25m
Southwest
Deal found 3/23$269
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/1512:27 pm
BWI
-
BOI
2 stops11h 57m
Delta
mar. 4/2111:35 pm
BOI
-
BWI
1 stop9h 11m
Delta
Deal found 3/25$274
This Delta deal was found by Cheapflights users on 3/23. 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. 4/147:15 am
BWI
-
GEG
1 stop7h 58m
Delta
sáb. 4/1812:58 pm
GEG
-
BWI
1 stop7h 27m
Delta
Deal found 3/23$277
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/1512:27 pm
BWI
-
BOI
2 stops11h 57m
Delta
mié. 4/228:40 pm
BOI
-
BWI
2 stops10h 31m
Delta
Deal found 3/25$280
This Delta deal was found by Cheapflights users on 3/23. 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.
mié. 6/312:31 pm
BWI
-
GEG
2 stops14h 04m
Delta
lun. 6/812:35 pm
GEG
-
BWI
1 stop7h 38m
Delta
Deal found 3/23$288
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/144:18 pm
BWI
-
GEG
1 stop7h 53m
United Airlines
sáb. 4/181:46 pm
GEG
-
BWI
1 stop6h 38m
United Airlines
Deal found 3/24$296
This American Airlines deal was found by Cheapflights users on 3/20. 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.
mar. 4/215:39 am
BWI
-
GEG
1 stop9h 53m
American Airlines
mar. 4/281:22 pm
GEG
-
BWI
1 stop7h 34m
American Airlines
Deal found 3/20$297
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/166:00 am
BWI
-
BOI
1 stop9h 07m
Delta
mar. 4/218:40 pm
BOI
-
BWI
2 stops10h 31m
Delta
Deal found 3/25$302
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/1512:27 pm
BWI
-
BOI
2 stops11h 57m
Delta
lun. 4/208:40 pm
BOI
-
BWI
2 stops11h 42m
Delta
Deal found 3/25$307

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 marzo 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(United Airlines)

One-way from

$134
(Delta)

Popular in

December

Cheapest in

April

Average price

$527
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. 11% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 marzo 25, 2026.
Use the filters below to find and compare flights from Baltimore to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 4/14

6:25 pm-12:25 am

1 stop8h 00m

Boise Air Term. Gowen Fld

mar. 4/21

5:15 pm-5:20 am

2 stops10h 05m

$274

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mié. 4/15

12:27 pm-10:24 pm

2 stops11h 57m

Boise Air Term. Gowen Fld

mié. 4/22

8:40 pm-9:11 am

2 stops10h 31m

$280

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mar. 4/21

10:42 am-9:05 pm

2 stops13h 23m

Spokane

mar. 4/28

7:03 pm-9:36 am

2 stops11h 33m

$307

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mié. 4/22

7:20 am-3:25 pm

1 stop10h 05m

Boise Air Term. Gowen Fld

sáb. 4/25

2:50 pm-5:20 am

1 stop12h 30m

$310

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mar. 6/9

6:10 am-11:45 am

1 stop8h 35m

Spokane

mar. 6/9

2:55 pm-12:50 am

1 stop6h 55m

$328

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 4/14

10:42 am-9:56 pm

2 stops13h 14m

Boise Air Term. Gowen Fld

mié. 4/22

8:40 pm-9:11 am

2 stops10h 31m

$337

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

vie. 5/29

5:26 pm-11:06 pm

2 stops8h 40m

Spokane

lun. 6/1

10:40 pm-9:23 am

1 stop7h 43m

$340

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

jue. 4/23

9:40 am-6:20 pm

1 stop10h 40m

Boise Air Term. Gowen Fld

sáb. 4/25

2:50 pm-5:20 am

1 stop12h 30m

$357

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mié. 6/10

6:08 am-1:18 pm

2 stops10h 10m

Spokane

sáb. 6/20

5:05 pm-5:50 am

1 stop9h 45m

$357

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 4/14

6:03 am-4:14 pm

2 stops12h 11m

Boise Air Term. Gowen Fld

lun. 4/20

8:40 pm-9:11 am

2 stops10h 31m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 60 resultsSorted by cheapest first
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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 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.

How much does it cost to fly round-trip from Baltimore to Idaho?

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 marzo 25, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta 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.
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,333 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,111 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,326 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,477 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    Southwest, Delta, and United Airlines can get you from Baltimore to Idaho in just under 6h 57m. Your travel time can differ by up to 5h. The distance between Baltimore and Idaho is about 1956 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 $164 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 marzo 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$478FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$639FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$321Average$393FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$351Average$487FlexibilityNo cancel feeOn-time63%

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