$210+ Cheap flights from Baltimore to Idaho Falls (BWI - IDA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — IDA
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Idaho Falls 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 Falls
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Best
Last-minute
One-way
Cheapest flights from Baltimore to Idaho FallsExplore the most affordable flight options available from Baltimore to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Baltimore to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:15 pm -
1 stop23h 05m
Wed 10/281:58 pm -
1 stop13h 22m
Deal found 9/3![Alaska Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 9/7. 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 12/117:00 am -
1 stop7h 17m
Tue 1/56:45 pm -
1 stop9h 15m
Deal found 9/7![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/308:23 am -
1 stop9h 15m
Mon 11/22:35 pm -
1 stop6h 33m
Deal found 9/7![United Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 10/77:17 am -
1 stop8h 03m
Wed 10/211:50 pm -
1 stop8h 34m
Deal found 9/3![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 9/6. 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 10/167:00 am -
1 stop7h 22m
Mon 10/196:56 pm -
1 stop8h 49m
Deal found 9/6![Delta logo]()
$469
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/177:17 am -
1 stop8h 03m
Wed 10/211:50 pm -
1 stop8h 34m
Deal found 9/4![American Airlines logo]()
$471
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 pm -
1 stop23h 05m
Mon 10/191:58 pm -
1 stop13h 22m
Deal found 9/4![Alaska Airlines logo]()
$479
Best flights from Baltimore to Idaho FallsDiscover carefully curated flight deals from Baltimore to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Baltimore to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/6. 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 12/117:00 am -
1 stop7h 17m
Tue 1/56:45 pm -
1 stop9h 15m
Deal found 9/6![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/308:23 am -
1 stop9h 15m
Mon 11/22:35 pm -
1 stop6h 33m
Deal found 9/7![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 1/84:10 pm -
1 stop6h 58m
Tue 1/122:35 pm -
1 stop6h 25m
Deal found 9/3![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 9/6. 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 10/167:00 am -
1 stop7h 22m
Mon 10/196:56 pm -
1 stop8h 49m
Deal found 9/6![Delta logo]()
$469
Last-minute flights from Baltimore to Idaho FallsDiscover last-minute flight deals from Baltimore to Idaho Falls. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Idaho Falls. Data last updated September 8, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:43 pm -
1 stop22h 41m
Thu 10/13:57 pm -
1 stop21h 43m
Deal found 9/4![Alaska Airlines logo]()
$539
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 10/77:17 am -
1 stop8h 03m
Wed 10/211:50 pm -
1 stop8h 34m
Deal found 9/3![American Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/79:09 am -
2 stops10h 07m
Wed 10/2110:35 am -
1 stop7h 05m
Deal found 9/3![United Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 9/7. 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 10/167:00 am -
1 stop7h 22m
Mon 10/196:56 pm -
1 stop8h 49m
Deal found 9/7![Delta logo]()
$469
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 pm -
1 stop23h 05m
Mon 10/191:58 pm -
1 stop13h 22m
Deal found 9/4![Alaska Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/167:17 am -
2 stops16h 25m
Mon 10/191:50 pm -
1 stop8h 34m
Deal found 9/7![American Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/177:17 am -
1 stop8h 03m
Wed 10/211:50 pm -
1 stop8h 34m
Deal found 9/4![American Airlines logo]()
$471
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:15 pm -
1 stop23h 05m
Wed 10/281:58 pm -
1 stop13h 22m
Deal found 9/3![Alaska Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/235:00 am -
2 stops18h 42m
Mon 10/261:50 pm -
1 stop8h 26m
Deal found 9/7![American Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/308:23 am -
1 stop9h 15m
Mon 11/22:35 pm -
1 stop6h 33m
Deal found 9/7![United Airlines logo]()
$414
One-way flights from Baltimore to Idaho FallsSearch for one-way flight options from Baltimore to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Baltimore to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 10/77:17 am -
1 stop8h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$210
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/79:09 am -
2 stops10h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$384
Find flight deals from Baltimore to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Expedia) |
One-way from | $210 (American Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $670 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore to Idaho Falls 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 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Baltimore to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BaltimoreIdaho Falls
BWI Baltimore/Washington - IDA Idaho Falls Fanning Field
BWIIDA
Baltimore/Washington
Wed 10/7
7:17 am-1:20 pm
1 stop8h 03m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$210
BaltimoreIdaho Falls
BWI Baltimore/Washington - IDA Idaho Falls Fanning Field
BWIIDA
Baltimore/Washington
Fri 12/11
7:00 am-12:17 pm
1 stop7h 17m
Idaho Falls Fanning Field
Tue 1/5
6:45 pm-6:00 am
1 stop9h 15m
$379
BaltimoreIdaho Falls
BWI Baltimore/Washington - IDA Idaho Falls Fanning Field
BWIIDA
Baltimore/Washington
Wed 10/7
9:09 am-5:16 pm
2 stops10h 07m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$384
BaltimoreIdaho Falls
BWI Baltimore/Washington - IDA Idaho Falls Fanning Field
BWIIDA
Baltimore/Washington
Fri 10/30
8:23 am-3:38 pm
1 stop9h 15m
Idaho Falls Fanning Field
Mon 11/2
2:35 pm-11:08 pm
1 stop6h 33m
$414
BaltimoreIdaho Falls
BWI Baltimore/Washington - IDA Idaho Falls Fanning Field
BWIIDA
Baltimore/Washington
Fri 1/8
4:10 pm-9:08 pm
1 stop6h 58m
Idaho Falls Fanning Field
Tue 1/12
2:35 pm-11:00 pm
1 stop6h 25m
$459
BaltimoreIdaho Falls
BWI Baltimore/Washington - IDA Idaho Falls Fanning Field
BWIIDA
Baltimore/Washington
Fri 10/16
7:00 am-12:22 pm
1 stop7h 22m
Idaho Falls Fanning Field
Mon 10/19
6:56 pm-5:45 am
1 stop8h 49m
$469
Sorted by cheapest first
Compare providers for flights from Baltimore to Idaho Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Idaho Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Baltimore-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Baltimore to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Baltimore with our price prediction graph.
BWI-IDA
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 Falls
Reviews of airlines servicing Idaho Falls
Get insights into the airlines that provide service to Idaho Falls. 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 Falls. Reviews last updated September 8, 2026.
See what other customers who have flown with United Airlines and American Airlines from Baltimore to Idaho Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Baltimore to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsRexburg
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Complete your trip
Complete your trip to Idaho Falls by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to Idaho Falls by cabin class
Find flights from Baltimore to Idaho Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Idaho Falls
Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Baltimore and Idaho Falls flights
Browse other Baltimore and Idaho Falls flight options. Last updated on September 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Baltimore to Idaho Falls
Discover the top 2 airlines that operate flights from Baltimore to Idaho Falls. 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 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$274 | Average$725 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$448 | Average$651 | FlexibilityNo cancel fee | On-time71% |