Frontier Airlines Seattle to Chicago Flights

Return flight: Chicago – Seattle
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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap Frontier Airlines flights from Seattle to Chicago. Compare airline ticket prices and book air tickets starting from $36 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Frontier Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Chicago (IL) by Frontier Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in may: one-way - $36, two-way – $62.
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Cheap Flights from Seattle to Chicago by Frontier Airlines

Look at the list of plane tickets for the most connecting flights by Frontier Airlines, their prices start from $36. There’re no direct flights. The fastest connecting flight – 7h 13m.
Price Departure Arrival Flight Time Airline Flight
from $36
Find flight
2:00 pm
Seattle
Seattle-Tacoma Intl
 0:52 am+1 день
Chicago
O'Hare International
 8h 52m
layover
3h 45m - Denver
 Frontier Airlines
F9142
F9410
from $68
Find flight
1:51 pm
Seattle
Seattle-Tacoma Intl
 11:04 pm
Chicago
O'Hare International
 7h 13m
layover
2h 8m - Denver
 Frontier Airlines
F9142
UA306
from $96
Find flight
0:55 am
Seattle
Seattle-Tacoma Intl
 10:22 am
Chicago
O'Hare International
 7h 27m
layover
2h 30m - Denver
 Frontier Airlines
F9136
UA532
from $101
Find flight
7:21 pm
Seattle
Seattle-Tacoma Intl
 9:27 am+1 день
Chicago
O'Hare International
 12h 6m
layover
6h 59m - Denver
 Frontier Airlines
F9142
NK624
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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 04/25/2024
Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
0:55 am — 10:22 am
0:55 am — 4:30 am F9136 Frontier Airlines
Seattle — Denver
2h 30m stop
7:00 am — 10:22 am UA532 United Airlines
Denver — Chicago
7h 27m
including layover
Find flight
from$96
1:51 pm — 11:04 pm
1:51 pm — 5:32 pm F9142 Frontier Airlines
Seattle — Denver
2h 8m stop
7:40 pm — 11:04 pm UA306 United Airlines
Denver — Chicago
7h 13m
including layover
Find flight
from$68
1:51 pm — 7:30 am
+1 day
1:51 pm — 5:32 pm F9142 Frontier Airlines
Seattle — Denver
3h 18m stop
8:50 pm — 11:52 pm F9462 Frontier Airlines
Denver — Minneapolis
6h 8m stop
6:00 am — 7:30 am WN1651 Southwest Airlines
Minneapolis — Chicago
15h 39m
including layover
Find flight
from$123
2:00 pm — 0:52 am
+1 day
2:00 pm — 5:41 pm F9142 Frontier Airlines
Seattle — Denver
3h 45m stop
9:26 pm — 0:52 am F9410 Frontier Airlines
Denver — Chicago
8h 52m
including layover
Find flight
from$36
2:00 pm — 9:33 am
+1 day
2:00 pm — 5:41 pm F9142 Frontier Airlines
Seattle — Denver
12h 19m stop
6:00 am — 9:33 am F9412 Frontier Airlines
Denver — Chicago
17h 33m
including layover
Find flight
from$49
7:00 am — 0:40 am
+1 day
7:00 am — 10:39 am F9144 Frontier Airlines
Seattle — Denver
10h 35m stop
9:14 pm — 0:40 am F9410 Frontier Airlines
Denver — Chicago
15h 40m
including layover
Find flight
from$42
7:21 pm — 9:27 am
+1 day
7:21 pm — 11:01 pm F9142 Frontier Airlines
Seattle — Denver
6h 59m stop
6:00 am — 9:27 am NK624 Spirit Airlines
Denver — Chicago
12h 6m
including layover
Find flight
from$101
*Departure and arrival times are local. Last updated on 04/25/2024

Flight Information

There are 8 flights by Frontier Airlines from Seattle to Chicago every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee.

Departures start from 0:55 am to 7:21 pm. Nonstop flight is 7h 13m. The time difference between Seattle and Chicago is 2h.

  • The fastest flight 7h 13m
  • Average flight time 12h 6m
  • The earliest flight 0:55 am
  • The latest flight 7:21 pm
  • Distance 1732 ml

The cheapest flight by Frontier Airlines that our users were able to find is $36. This airfare is economy class on one-way F9142 flight for August 26, 2020 leaving Seattle-Tacoma Intl in Seattle at 2:00 pm, it includes all taxes and additional fees.

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Frontier Airlines Airplanes on the Route

List of the most popular Frontier Airlines airplanes flying from Seattle to Chicago:

  • Airbus A320
    from $36
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Other Popular Airlines on the Route

Besides Frontier Airlines there are other 7 airline carriers between Seattle and Chicago. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Chicago.

Nonstop flights

There are 17 direct flights every day from Seattle. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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