$89+ Cheap flights from Baltimore (BWI) to O'Hare Intl (ORD)
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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to O'Hare Intl 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.Cheapflights Tip: The best prices from Baltimore/Washington to Chicago O'Hare Intl are usually found in February or October, booked 69 days in advance, depart on a Friday or Thursday and return on a Friday
Cheap flight deals from Baltimore to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to O'Hare IntlExplore the most affordable flight options available from Baltimore to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from Baltimore to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 am -
1 stop14h 23m
Sun 9/61:03 pm -
Nonstop2h 10m
Deal found 8/14![Frontier logo]()
$188
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:37 pm -
Nonstop2h 28m
Tue 9/87:05 am -
1 stop9h 38m
Deal found 8/14![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:08 pm -
Nonstop2h 31m
Sat 9/126:20 am -
1 stop9h 26m
Deal found 8/12![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:08 pm -
Nonstop2h 31m
Sun 9/61:03 pm -
Nonstop2h 10m
Deal found 8/13![Frontier logo]()
$191
This Expedia deal was found by Cheapflights users on 8/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:20 am -
Nonstop2h 20m
Sun 9/206:20 am -
Nonstop2h 05m
Deal found 8/12![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:22 am -
1 stop9h 01m
Mon 9/288:55 pm -
2 stops24h 03m
Deal found 8/13![Frontier logo]()
$193
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:52 pm -
1 stop28h 16m
Mon 9/79:10 pm -
1 stop23h 20m
Deal found 8/13![Frontier logo]()
$194
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:28 pm -
1 stop6h 40m
Mon 8/312:25 pm -
Nonstop2h 17m
Deal found 8/12![Frontier logo]()
$195
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:03 pm -
1 stop13h 23m
Mon 10/126:00 am -
Nonstop2h 03m
Deal found 8/14![Frontier logo]()
$196
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:01 am -
Nonstop2h 29m
Mon 9/146:58 am -
Nonstop2h 09m
Deal found 8/12![American Airlines logo]()
$197
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:23 am -
Nonstop2h 17m
Tue 9/156:58 am -
Nonstop2h 09m
Deal found 8/12![American Airlines logo]()
$198
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:08 pm -
Nonstop2h 31m
Fri 9/1110:26 am -
1 stop11h 38m
Deal found 8/13![Frontier logo]()
$199
Best flights from Baltimore to O'Hare IntlDiscover carefully curated flight deals from Baltimore to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from Baltimore to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/2312:10 pm -
Nonstop2h 20m
Mon 10/264:05 pm -
Nonstop2h 04m
Deal found 8/16![United Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 8/13. 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.
Thu 10/17:05 am -
1 stop6h 36m
Mon 10/55:10 pm -
1 stop4h 51m
Deal found 8/13![Delta logo]()
$270
This KAYAK deal was found by Cheapflights users on 8/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
Nonstop2h 29m
Fri 10/21:19 pm -
1 stop5h 14m
Deal found 8/14![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 9/216:05 am -
Nonstop2h 21m
Thu 9/247:30 am -
Nonstop2h 00m
Deal found 8/14![United Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/19:09 am -
Nonstop2h 20m
Wed 10/77:30 am -
Nonstop2h 00m
Deal found 8/16![United Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 9/287:05 pm -
Nonstop2h 19m
Wed 9/307:30 am -
Nonstop2h 00m
Deal found 8/14![United Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/297:05 pm -
Nonstop2h 19m
Mon 10/127:30 am -
Nonstop2h 00m
Deal found 8/12![United Airlines logo]()
$268
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/810:25 am -
Nonstop2h 20m
Thu 9/177:45 pm -
Nonstop2h 14m
Deal found 8/13![United Airlines logo]()
$268
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/36:05 am -
Nonstop2h 21m
Sun 9/610:49 am -
Nonstop2h 09m
Deal found 8/13![United Airlines logo]()
$270
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 9/55:40 pm -
Nonstop2h 20m
Sun 9/63:35 pm -
Nonstop2h 07m
Deal found 8/16![United Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/29:09 am -
Nonstop2h 20m
Wed 10/77:45 pm -
Nonstop2h 14m
Deal found 8/16![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/25:29 pm -
Nonstop2h 20m
Tue 10/65:55 pm -
Nonstop2h 07m
Deal found 8/16![United Airlines logo]()
$299
Last-minute flights from Baltimore to O'Hare IntlDiscover last-minute flight deals from Baltimore to O'Hare Intl. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to O'Hare Intl. Data last updated August 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:37 pm -
Nonstop2h 28m
Mon 8/312:25 pm -
Nonstop2h 17m
Deal found 8/12![Frontier logo]()
$231
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:45 am -
1 stop12h 23m
Mon 8/312:25 pm -
Nonstop2h 17m
Deal found 8/12![Frontier logo]()
$238
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:37 pm -
Nonstop2h 28m
Mon 8/312:25 pm -
Nonstop2h 17m
Deal found 8/14![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:32 pm -
1 stop11h 21m
Tue 9/226:20 am -
1 stop9h 26m
Deal found 8/13![Frontier logo]()
$243
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:45 am -
1 stop12h 14m
Sat 9/1912:56 pm -
Nonstop2h 12m
Deal found 8/15![Frontier logo]()
$203
This Expedia deal was found by Cheapflights users on 8/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:24 am -
1 stop17h 44m
Mon 8/312:25 pm -
Nonstop2h 17m
Deal found 8/12![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:45 am -
1 stop12h 23m
Mon 8/312:25 pm -
Nonstop2h 17m
Deal found 8/12![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:45 am -
1 stop12h 23m
Sat 9/51:59 pm -
1 stop6h 57m
Deal found 8/12![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:09 pm -
1 stop11h 59m
Sun 9/61:03 pm -
Nonstop2h 10m
Deal found 8/14![Frontier logo]()
$222
One-way flights from Baltimore to O'Hare IntlSearch for one-way flight options from Baltimore to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Baltimore to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 9/51:00 pm -
Nonstop2h 21m
Deal found 8/12![United Airlines logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:42 pm -
1 stop28h 57m
Deal found 8/16![Frontier logo]()
$90
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:04 pm -
1 stop8h 55m
Deal found 8/12![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 8/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:37 pm -
Nonstop2h 28m
Deal found 8/12![Frontier logo]()
$92
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/11:00 pm -
Nonstop2h 21m
Deal found 8/13![United Airlines logo]()
$93
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:42 pm -
1 stop21h 35m
Deal found 8/15![Frontier logo]()
$94
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am -
Nonstop2h 29m
Deal found 8/12![American Airlines logo]()
$96
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:46 pm -
1 stop10h 39m
Deal found 8/13![Frontier logo]()
$97
This Delta deal was found by Cheapflights users on 8/14. 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.
Sat 9/1211:42 am -
1 stop5h 55m
Deal found 8/14![Delta logo]()
$99
Find flight deals from Baltimore to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to O'Hare Intl (ORD). 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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $188 (Kiwi.com) |
One-way from | $89 (United Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $304 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore to O'Hare Intl 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 August 17, 2026.
Use the filters below to find and compare flights from Baltimore to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Fri 10/23
12:10 pm-1:30 pm
Nonstop2h 20m
Chicago O'Hare Intl
Mon 10/26
4:05 pm-7:09 pm
Nonstop2h 04m
$219
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Mon 9/21
6:05 am-7:26 am
Nonstop2h 21m
Chicago O'Hare Intl
Thu 9/24
7:30 am-10:30 am
Nonstop2h 00m
$253
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Thu 10/1
9:09 am-10:29 am
Nonstop2h 20m
Chicago O'Hare Intl
Wed 10/7
7:30 am-10:30 am
Nonstop2h 00m
$257
Quickest round-trip
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Mon 9/28
7:05 pm-8:24 pm
Nonstop2h 19m
Chicago O'Hare Intl
Wed 9/30
7:30 am-10:30 am
Nonstop2h 00m
$257
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Tue 9/29
7:05 pm-8:24 pm
Nonstop2h 19m
Chicago O'Hare Intl
Mon 10/12
7:30 am-10:30 am
Nonstop2h 00m
$268
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Tue 9/8
10:25 am-11:45 am
Nonstop2h 20m
Chicago O'Hare Intl
Thu 9/17
7:45 pm-10:59 pm
Nonstop2h 14m
$268
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Thu 10/1
7:05 am-12:41 pm
1 stop6h 36m
Chicago O'Hare Intl
Mon 10/5
5:10 pm-11:01 pm
1 stop4h 51m
$270
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Thu 9/3
6:05 am-7:26 am
Nonstop2h 21m
Chicago O'Hare Intl
Sun 9/6
10:49 am-1:58 pm
Nonstop2h 09m
$270
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Sat 9/5
5:40 pm-7:00 pm
Nonstop2h 20m
Chicago O'Hare Intl
Sun 9/6
3:35 pm-6:42 pm
Nonstop2h 07m
$291
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Fri 10/2
9:09 am-10:29 am
Nonstop2h 20m
Chicago O'Hare Intl
Wed 10/7
7:45 pm-10:59 pm
Nonstop2h 14m
$299
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Baltimore to O'Hare Intl
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 O'Hare Intl in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Baltimore-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-Chicago O'Hare Intl Airport 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-Chicago O'Hare Intl Airport 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 O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Baltimore with our price prediction graph.
BWI-ORD
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 Chicago O'Hare Intl Airport
Prices
Airlines
How far ahead should I book a flight from Baltimore to Chicago O'Hare Intl Airport?
Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Baltimore to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $228). Flying from Baltimore to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $387). 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.
What is the cheapest time of day to fly from BWI to ORD?
Find hourly flight availability from Baltimore to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2026.
One of the essential ways to save on airfare from Baltimore to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 30% on airfare.
What is the cheapest day to fly from Baltimore to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Baltimore to O'Hare Intl. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their Baltimore to Chicago O'Hare Intl Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Baltimore to Chicago O'Hare Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to Chicago O'Hare Intl Airport trip
Our travel experts
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated August 17, 2026.
Read through reviews of airlines operating flights from Baltimore to Chicago O'Hare Intl Airport, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Related info for your journey
Find useful and relevant information for your journey from Baltimore to O'Hare Intl. 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 Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Schaumburg
Naperville
Lake Geneva
Oak Brook
Oakbrook Terrace
Delavan
South Holland
Libertyville
Gurnee
Orland Park
Hoffman Estates
Beloit
Rockford
Aurora
Racine
Great Lakes
Janesville
Joliet
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Other flights to O'Hare Intl
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Baltimore and O'Hare Intl flights
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Top 4 airlines flying from Baltimore to O'Hare Intl
Discover the top 4 airlines that operate flights from Baltimore to O'Hare Intl. 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$166 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$134 | Average$308 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$166 | Average$334 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$174 | Average$317 | FlexibilityNo cancel fee | On-time71% |