Baltimore

$132+ Cheap flights from Idaho to Baltimore (BWI)

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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BWI
May 31 — Jun 71
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Baltimore 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 Idaho to Baltimore

Cheapest flights from Idaho to Baltimore
Explore the most affordable flight options available from Idaho to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.

This Delta deal was found by Cheapflights users on 4/28. 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 5/276:41 pm
BOI
-
BWI
1 stop9h 04m
Delta
Mon 6/16:59 pm
BWI
-
BOI
1 stop6h 47m
Delta
Deal found 4/28$263
This Delta deal was found by Cheapflights users on 4/27. 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 5/279:16 pm
BOI
-
BWI
2 stops9h 17m
Delta
Tue 6/96:19 am
BWI
-
BOI
1 stop6h 44m
Delta
Deal found 4/27$268
This Delta deal was found by Cheapflights users on 4/29. 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 5/279:16 pm
BOI
-
BWI
2 stops9h 17m
Delta
Tue 6/26:10 am
BWI
-
BOI
2 stops10h 31m
Delta
Deal found 4/29$273
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:55 pm
BOI
-
BWI
2 stops10h 02m
Delta
Thu 6/46:59 pm
BWI
-
BOI
1 stop6h 47m
Delta
Deal found 4/30$278
This Delta deal was found by Cheapflights users on 4/26. 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.
Thu 5/2811:39 pm
BOI
-
BWI
1 stop7h 44m
Delta
Tue 6/212:31 pm
BWI
-
BOI
2 stops11h 13m
Delta
Deal found 4/26$288
This Delta deal was found by Cheapflights users on 4/27. 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.
Fri 8/141:43 pm
BOI
-
BWI
1 stop6h 59m
Delta
Mon 8/177:10 am
BWI
-
BOI
1 stop9h 24m
Delta
Deal found 4/27$306
This Delta deal was found by Cheapflights users on 4/27. 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 7/147:08 pm
GEG
-
BWI
1 stop7h 52m
Delta
Tue 7/216:20 am
BWI
-
GEG
1 stop8h 19m
Delta
Deal found 4/27$309
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 5/292:23 pm
BOI
-
BWI
1 stop7h 23m
Delta
Mon 6/15:26 pm
BWI
-
BOI
2 stops8h 20m
Delta
Deal found 4/29$311
This Delta deal was found by Cheapflights users on 4/26. 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.
Fri 7/1010:48 pm
GEG
-
BWI
1 stop8h 19m
Delta
Wed 7/226:20 am
BWI
-
GEG
1 stop8h 19m
Delta
Deal found 4/26$318
This Delta deal was found by Cheapflights users on 4/26. 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.
Fri 7/1010:48 pm
GEG
-
BWI
1 stop8h 19m
Delta
Mon 7/205:40 am
BWI
-
GEG
2 stops10h 41m
Delta
Deal found 4/26$323
This Delta deal was found by Cheapflights users on 4/27. 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.
Fri 7/242:26 pm
GEG
-
BWI
1 stop5h 47m
Delta
Fri 8/76:20 am
BWI
-
GEG
1 stop8h 19m
Delta
Deal found 4/27$327
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 6/41:59 pm
GEG
-
BWI
1 stop13h 29m
Alaska Airlines
Mon 6/84:17 pm
BWI
-
GEG
1 stop9h 49m
Alaska Airlines
Deal found 4/29$328

Find flight deals from Idaho to Baltimore

Keep the following information in mind while searching for Idaho to Baltimore flight deals. Data was last updated May 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$263
(Delta)

One-way from

$132
(Delta)

Popular in

December

Cheapest in

February

Average price

$321
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.
From Idaho to Baltimore/Washington
One-way flight from Idaho to Baltimore/Washington
Highest demand for flights based on searches. 27% potential increase in price ($151 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Baltimore 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 May 1, 2026.
Use the filters below to find and compare flights from Idaho to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 9/19

1:43 pm-12:16 am

1 stop8h 33m

Baltimore/Washington

Sat 9/26

6:19 am-2:03 pm

1 stop9h 44m

$263
Quickest round-trip

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 9/19

5:40 am-1:55 pm

1 stop6h 15m

Baltimore/Washington

Tue 9/22

7:10 am-12:14 pm

1 stop7h 04m

$263

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 5/28

11:39 pm-9:23 am

1 stop7h 44m

Baltimore/Washington

Tue 6/2

6:17 am-1:18 pm

1 stop9h 01m

$303

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Fri 8/14

11:30 pm-9:55 am

1 stop8h 25m

Baltimore/Washington

Mon 8/17

7:00 pm-11:29 pm

1 stop6h 29m

$306

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 6/4

2:23 pm-11:46 pm

1 stop7h 23m

Baltimore/Washington

Sun 6/7

7:00 am-12:54 pm

1 stop7h 54m

$306

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 9/10

5:09 am-3:34 pm

1 stop7h 25m

Baltimore/Washington

Mon 9/14

4:34 pm-11:14 pm

1 stop9h 40m

$309

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Mon 8/3

10:48 pm-9:24 am

1 stop7h 36m

Baltimore/Washington

Sat 8/8

6:20 am-11:39 am

1 stop8h 19m

$309

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 8/6

12:35 pm-11:13 pm

1 stop7h 38m

Baltimore/Washington

Wed 8/12

7:10 am-12:02 pm

1 stop7h 52m

$309

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Wed 7/8

10:48 pm-9:24 am

1 stop7h 36m

Baltimore/Washington

Tue 7/14

5:27 pm-11:55 pm

2 stops9h 28m

$314

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 7/14

2:26 pm-11:13 pm

1 stop5h 47m

Baltimore/Washington

Tue 7/21

5:40 am-1:21 pm

2 stops10h 41m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Idaho to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Idaho 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 Idaho to Baltimore

What is the cheapest month to book a flight from Idaho to Baltimore?

Currently, March is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $168). Flying from Idaho to Baltimore in February is currently the most expensive (average of $397). 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 Idaho to Baltimore?

Related info for your journey

Find useful and relevant information for your journey from Idaho to Baltimore. 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 into for flights to Baltimore from Idaho?

    Most people fly into Baltimore/Washington (BWI) if they book a flight to Baltimore from Idaho. Baltimore/Washington is conveniently located just 8.5 mi from Baltimore’s city center.

  • How long is the flight from Idaho to Baltimore?

    For as low as $413, Delta can have you in Baltimore from Idaho in 6h 53m. Airlines will cover a distance of 1778 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $143. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from Idaho to Baltimore for a low price.

  • What are the most popular routes from Idaho to Baltimore?

  • Can I find deals for flights from Idaho to Baltimore that include hotel bookings?

    Yes. In addition to deals on Idaho to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Baltimore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Baltimore.

  • Can I find deals for business class flights from Idaho to Baltimore?

    Yes. Cheapflights offers flight deals from Idaho to Baltimore 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 Idaho to Baltimore?

    Currently, March is the cheapest month in which you can book a flight from Idaho to Baltimore (average of $168). Flying from Idaho to Baltimore in February is currently the most expensive (average of $397). 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 Idaho to Baltimore

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Idaho to Baltimore

Discover the top 3 airlines that operate flights from Idaho to Baltimore. 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 May 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$222Average$366FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$535FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$340Average$436FlexibilityNo 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.