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Frontier Airlines Flights to Chicago (CHI)
Hotels in Chicago
      • Cheapest nonstop
        BWI 09:53
        2h 30m
        Direct
        ORD 11:23
        Frontier Airlines Baltimore - Chicago | Thu, Oct 29 | Frontier Airlines
        ORD 06:00
        1h 57m
        Direct
        BWI 08:57
        Frontier Airlines Chicago - Baltimore | Mon, Nov 2 | Frontier Airlines
        £51 £204
        75% off
        75% off
        £204 £51
      • ATL 10:35
        2h 16m
        Direct
        ORD 11:51
        Frontier Airlines Atlanta - Chicago | Tue, Sep 22 | Frontier Airlines
        ORD 06:20
        2h 9m
        Direct
        ATL 09:29
        Frontier Airlines Chicago - Atlanta | Wed, Sep 23 | Frontier Airlines
        £54 £204
        74% off
        74% off
        £204 £54
      • DEN 20:55
        2h 28m
        Direct
        ORD 00:23
        Frontier Airlines Denver - Chicago | Wed, Sep 16 | Frontier Airlines
        ORD 06:30
        2h 45m
        Direct
        DEN 08:15
        Frontier Airlines Chicago - Denver | Wed, Sep 23 | Frontier Airlines
        £57 £204
        72% off
        72% off
        £204 £57
      • LAS 23:50
        3h 48m
        Direct
        ORD 05:38
        Frontier Airlines Las Vegas - Chicago | Wed, Sep 16 | Frontier Airlines
        ORD 13:21
        4h 9m
        Direct
        LAS 15:30
        Frontier Airlines Chicago - Las Vegas | Tue, Sep 22 | Frontier Airlines
        £73
        64% off
        £204 £73
      • FLL 12:18
        3h 27m
        Direct
        ORD 14:45
        Frontier Airlines Fort Lauderdale - Chicago | Thu, Sep 17 | Frontier Airlines
        ORD 07:11
        3h 12m
        Direct
        FLL 11:23
        Frontier Airlines Chicago - Fort Lauderdale | Mon, Sep 21 | Frontier Airlines
        £75
        63% off
        £204 £75
      • IAH 11:25
        2h 52m
        Direct
        ORD 14:17
        Frontier Airlines Houston - Chicago | Wed, Sep 16 | Frontier Airlines
        ORD 07:25
        3h 5m
        Direct
        IAH 10:30
        Frontier Airlines Chicago - Houston | Tue, Sep 22 | Frontier Airlines
        £78
        62% off
        £204 £78
      • DFW 09:36
        2h 23m
        Direct
        MDW 11:59
        Frontier Airlines Dallas - Chicago | Sat, Sep 26 | Frontier Airlines
        ORD 06:00
        2h 41m
        Direct
        DFW 08:41
        Frontier Airlines Chicago - Dallas | Wed, Sep 30 | Frontier Airlines
        £82
        60% off
        £204 £82
      • PHL 21:09
        2h 30m
        Direct
        ORD 22:39
        Frontier Airlines Philadelphia - Chicago | Sat, Oct 24 | Frontier Airlines
        ORD 16:41
        2h 23m
        Direct
        PHL 20:04
        Frontier Airlines Chicago - Philadelphia | Mon, Oct 26 | Frontier Airlines
        £83
        59% off
        £204 £83
      • MCO 05:20
        3h 11m
        Direct
        ORD 07:31
        Frontier Airlines Orlando - Chicago | Fri, Oct 23 | Frontier Airlines
        ORD 09:51
        2h 52m
        Direct
        MCO 13:43
        Frontier Airlines Chicago - Orlando | Tue, Oct 27 | Frontier Airlines
        £189
        7% off
        £204 £189
      • LON 13:00
        17h 25m
        1 stop
        CHI 14:00
        Normal Airline London - Chicago | Mon, Sep 14 | Normal Airline
        CHI 15:00
        6h
        Direct
        LON 16:00
        Normal Airline Chicago - London | Wed, Sep 16 | Normal Airline
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      • Cheapest nonstop
        IAH 11:36
        2h 49m
        Direct
        ORD 14:25
        Frontier Airlines Houston - Chicago | Sat, Oct 17 | Frontier Airlines
        £46 £124
        63% off
        63% off
        £124 £46
      • FLL 13:07
        3h 29m
        Direct
        ORD 15:36
        Frontier Airlines Fort Lauderdale - Chicago | Sat, Oct 24 | Frontier Airlines
        £49 £124
        60% off
        60% off
        £124 £49
      • LAX 00:21
        4h 13m
        Direct
        ORD 06:34
        Frontier Airlines Los Angeles - Chicago | Fri, Oct 16 | Frontier Airlines
        £51 £124
        59% off
        59% off
        £124 £51
      • PHL 21:09
        2h 30m
        Direct
        ORD 22:39
        Frontier Airlines Philadelphia - Chicago | Mon, Oct 12 | Frontier Airlines
        £77
        38% off
        £124 £77
      • LAS 23:29
        3h 47m
        Direct
        ORD 05:16
        Frontier Airlines Las Vegas - Chicago | Wed, Oct 28 | Frontier Airlines
        £84
        32% off
        £124 £84
      • BWI 17:03
        2h 24m
        Direct
        ORD 18:27
        Frontier Airlines Baltimore - Chicago | Mon, Oct 5 | Frontier Airlines
        £92
        26% off
        £124 £92
      • ATL 17:02
        2h 21m
        Direct
        ORD 18:23
        Frontier Airlines Atlanta - Chicago | Mon, Sep 21 | Frontier Airlines
        £96
        23% off
        £124 £96
      • DEN 20:55
        2h 28m
        Direct
        ORD 00:23
        Frontier Airlines Denver - Chicago | Mon, Sep 21 | Frontier Airlines
        £115
        7% off
        £124 £115
      • MSP 09:52
        7h 59m
        1 stop
        MDW 17:51
        Frontier Airlines Minneapolis - Chicago | Mon, Oct 5 | Frontier Airlines
        £78
        37% off
        £124 £78
      • LON 13:00
        17h 25m
        1 stop
        CHI 14:00
        Normal Airline London - Chicago | Mon, Sep 14 | Normal Airline
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Displayed flight fares to Chicago with Frontier Airlines are based on average prices across airlines over the next 3 months, according to the latest Trip.com data.

About Frontier Airlines
Airline name
Frontier Airlines
Airline code
F9
Airline type
Low-cost carrier (LCC)
Popular Countries Frontier Airlines Flies to:
South Korea , United States and Puerto Rico
Popular Frontier Airlines Arrival Cities
Popular Frontier Airlines Departure Cities
Based on Trip.com Historical Data

Frontier Airlines Flights to Chicago - FAQ

  • Does Frontier Airlines have baggage allowance?

    0-1 pieces of luggage are usually permitted for each economy class passenger traveling with Frontier Airlines (F9). This information can vary depending on your flight, so be sure to check your itinerary.
    • Approx. 10 hours 55 minutes to fly from London to Chicago.
    • Approx. 2 hours 51 minutes to fly from New York to Chicago.
    • Approx. 1 hour 54 minutes to fly from Toronto to Chicago.
    • Approx. 10 hours 1 minute to fly from Dublin to Chicago.
  • You can book cheaper flights in the following ways:
    • Search for tickets to a city or airport near Chicago.
    • Look up different airlines that have flights to Chicago.
    • Browse different departure dates from the same month.
    • Filter for different departure times from the same day.
    • Check for discount information on various social media sites.
    • Explore deals and discounts on airline websites.
  • Understanding peak and off travel seasons to Chicago can help you arrange your travel plans accordingly. The most popular month to visit Chicago is September. The average price of flight tickets to Chicago in September is £439.
  • Flight tickets to Chicago are the cheapest in December compared to other months, the average price is £275.
    • The distance from O'Hare International Airport to downtown is about 25km, by taxi about 40 minutes.
    • The distance from Chicago Midway International Airport to downtown is about 14km, by taxi about 30 minutes.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

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Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.