HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Baltimore

$89+ Cheap flights from O'Hare Intl (ORD) 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl 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.
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Baltimore/Washington are usually found in February or September, booked 88 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from O'Hare Intl to Baltimore

Cheapest flights from O'Hare Intl to Baltimore
Explore the most affordable flight options available from O'Hare Intl to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.

This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:25 pm
ORD
-
BWI
Nonstop2h 08m
United Airlines
Wed 5/277:05 pm
BWI
-
ORD
Nonstop2h 24m
United Airlines
Deal found 4/26$177
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:50 pm
ORD
-
BWI
1 stop8h 07m
Frontier
Sat 5/308:52 am
BWI
-
ORD
1 stop11h 49m
Frontier
Deal found 4/26$178
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:55 am
ORD
-
BWI
1 stop8h 27m
Frontier
Sat 6/61:34 pm
BWI
-
ORD
1 stop7h 17m
Frontier
Deal found 4/24$179
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:59 pm
ORD
-
BWI
1 stop7h 58m
Frontier
Sat 5/169:43 pm
BWI
-
ORD
1 stop11h 12m
Frontier
Deal found 4/27$180
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:59 pm
ORD
-
BWI
1 stop7h 58m
Frontier
Tue 5/194:31 pm
BWI
-
ORD
1 stop7h 30m
Frontier
Deal found 4/28$181
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:05 am
ORD
-
BWI
1 stop11h 02m
Multiple Airlines
Mon 5/1811:32 am
BWI
-
ORD
Nonstop2h 22m
Multiple Airlines
Deal found 4/26$182
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:50 pm
ORD
-
BWI
1 stop8h 10m
Frontier
Wed 8/129:32 pm
BWI
-
ORD
1 stop11h 21m
Frontier
Deal found 4/27$183
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:30 am
ORD
-
BWI
Nonstop2h 07m
Frontier
Mon 5/189:23 pm
BWI
-
ORD
1 stop11h 32m
Frontier
Deal found 4/27$184
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:55 am
ORD
-
BWI
1 stop8h 34m
Frontier
Sun 5/249:43 pm
BWI
-
ORD
1 stop9h 41m
Frontier
Deal found 4/27$185
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:30 am
ORD
-
BWI
Nonstop2h 07m
Frontier
Wed 5/209:13 pm
BWI
-
ORD
1 stop11h 38m
Frontier
Deal found 4/28$186
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:05 pm
ORD
-
BWI
2 stops14h 38m
Frontier
Tue 6/99:43 pm
BWI
-
ORD
1 stop11h 20m
Frontier
Deal found 4/28$187
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/173:44 pm
ORD
-
BWI
1 stop24h 23m
Frontier
Tue 5/194:31 pm
BWI
-
ORD
1 stop7h 30m
Frontier
Deal found 4/27$188

Find flight deals from O'Hare Intl to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Baltimore (BWI). 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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(United Airlines)

One-way from

$89
(United Airlines)

Popular in

May

Cheapest in

February

Average price

$289
Provider with most accurate pricing for Chicago O'Hare Intl-Baltimore/Washington flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Baltimore/Washington flights.
Search Deals
From Chicago O'Hare Intl to Baltimore/Washington
Search Deals
One-way flight from Chicago O'Hare Intl to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 April 29, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 6/2

9:25 pm-12:33 am

Nonstop2h 08m

Baltimore/Washington

Wed 6/3

8:05 pm-9:29 pm

Nonstop2h 24m

$177

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 7/29

7:05 am-6:33 pm

1 stop10h 28m

Baltimore/Washington

Mon 8/3

5:32 pm-12:49 am

1 stop8h 17m

$230

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Mon 5/11

7:30 am-10:37 am

Nonstop2h 07m

Baltimore/Washington

Fri 5/15

11:32 am-12:54 pm

Nonstop2h 22m

$232

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 6/3

2:25 pm-5:33 pm

Nonstop2h 08m

Baltimore/Washington

Fri 6/12

6:15 am-7:30 am

Nonstop2h 15m

$243

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 6/26

6:20 pm-9:26 pm

Nonstop2h 06m

Baltimore/Washington

Wed 7/1

8:25 am-9:39 am

Nonstop2h 14m

$243

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 6/17

2:25 pm-5:33 pm

Nonstop2h 08m

Baltimore/Washington

Fri 6/19

8:05 pm-9:29 pm

Nonstop2h 24m

$243

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 5/23

10:48 am-1:54 pm

Nonstop2h 06m

Baltimore/Washington

Sun 5/24

5:37 pm-7:00 pm

Nonstop2h 23m

$262

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 6/3

6:20 pm-9:26 pm

Nonstop2h 06m

Baltimore/Washington

Sun 6/7

8:05 pm-9:29 pm

Nonstop2h 24m

$273

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 7/4

9:40 pm-12:48 am

Nonstop2h 08m

Baltimore/Washington

Tue 7/7

10:44 am-12:00 pm

Nonstop2h 16m

$283

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 5/28

10:48 am-1:54 pm

Nonstop2h 06m

Baltimore/Washington

Wed 6/3

8:05 pm-9:29 pm

Nonstop2h 24m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from O'Hare Intl to Baltimore

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 O'Hare Intl to Baltimore in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Baltimore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Baltimore 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 Chicago O'Hare Intl Airport-Baltimore 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 O'Hare Intl to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from O'Hare Intl 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 Chicago O'Hare Intl Airport to Baltimore

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Baltimore?

The best time to book flights from Chicago O'Hare Intl Airport to Baltimore is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Baltimore?

Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Baltimore (average of $139). Flying from Chicago O'Hare Intl Airport to Baltimore in May is currently the most expensive (average of $293). 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 ORD to BWI?

Find hourly flight availability from O'Hare Intl to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2026.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Baltimore in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Baltimore?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Baltimore. Price data was last updated on April 25, 2026.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Baltimore flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Baltimore?

The best insider tips for Chicago O'Hare Intl Airport to Baltimore 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 Chicago O'Hare Intl Airport to Baltimore trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Emily Zemler

Emily Zemler

Expert on BWI

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated April 29, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Chicago O'Hare Intl Airport to Baltimore have to say. 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
4,314 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
4,314 reviews
Southwest
8.0
Very good
4,314 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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
9,680 reviews
Southwest
8.0
Very good
4,314 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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.
American Airlines
7.1
Good
11,678 reviews
Southwest
8.0
Very good
4,314 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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.
Spirit Airlines
6.3
Okay
8,631 reviews
Southwest
8.0
Very good
4,314 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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.
Frontier
5.7
Fair
2,970 reviews
Southwest
8.0
Very good
4,314 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

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 O'Hare Intl 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 Chicago O'Hare Intl?

    If you book a flight to Baltimore from Chicago O'Hare Intl, you will be flying to Baltimore/Washington, which is the city’s only airport. Baltimore/Washington (BWI) is located 8.5 mi from the center of Baltimore. There are 8 flights from Chicago O'Hare Intl to Baltimore/Washington per day from 5 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to Baltimore?

    Airlines like United Airlines and Frontier fly from Chicago O'Hare Intl Airport to Baltimore in about 2h 08m. The time it takes to get you to your destination can typically vary by up to 8h 20m. Chicago O'Hare Intl Airport and Baltimore are separated by a distance of 620 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Baltimore round-trip?

    Spirit Airlines, at $42, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Baltimore.Alternate airlines to your destination round-trip include Frontier and United Airlines. You may be able to fly from Chicago O'Hare Intl Airport to Baltimore for 81% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Baltimore one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $36. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Chicago O'Hare Intl Airport to Baltimore for a low price.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Baltimore?

    Consider CommutAir (100%), Royal Jordanian (75%) or United Airlines (73%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Baltimore.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Baltimore?

    While on average a flight from Chicago O'Hare Intl Airport to Baltimore is generally $413, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Chicago O'Hare Intl - Baltimore/Washington), you can expect to pay $154 for that flight.

  • Can I find deals for flights from O'Hare Intl to Baltimore that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Baltimore?

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

  • Can I find deals for business class flights from O'Hare Intl to Baltimore?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 Chicago O'Hare Intl Airport to Baltimore?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Baltimore (average of $139). Flying from Chicago O'Hare Intl Airport to Baltimore in May is currently the most expensive (average of $293). 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.

Top 5 airlines flying from O'Hare Intl to Baltimore

Discover the top 5 airlines that operate flights from O'Hare Intl 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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$42Average$119FlexibilityNo cancel feeOn-time65%
FrontierCheapest$57Average$149FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$114Average$289FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$127Average$228FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$148Average$291FlexibilityNo cancel feeOn-time71%

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.