$213 Cheap Flights from Thunder Bay (YQT) to Chicago (MDW)

View $213 flight on Sun, Sep 21, 2025Opens in a new window

Popular airlines from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Chicago Midway Airport (MDW)

Cheap Flights from Thunder Bay to Chicago (YQT-MDW)

Prices were available within the past 7 days and start at $213 for one-way flights and $404 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Fri, Sep 19 - Mon, Sep 22
YQT
Thunder Bay
MDW
Chicago
$404 Roundtrip, found 4 days ago
$404
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Fri, Sep 19 from Thunder Bay to Chicago, returning Mon, Sep 22, priced at $404 found 4 days ago
Porter Airlines
Mon, Sep 22 - Mon, Sep 29
YQT
Thunder Bay
MDW
Chicago
$405 Roundtrip, found 3 days ago
$405
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Mon, Sep 22 from Thunder Bay to Chicago, returning Mon, Sep 29, priced at $405 found 3 days ago
Porter Airlines
Fri, Sep 19 - Mon, Sep 22
YQT
Thunder Bay
MDW
Chicago
$428 Roundtrip, found 4 days ago
$428
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Fri, Sep 19 from Thunder Bay to Chicago, returning Mon, Sep 22, priced at $428 found 4 days ago
Porter Airlines
Mon, Sep 22 - Mon, Sep 29
YQT
Thunder Bay
MDW
Chicago
$429 Roundtrip, found 3 days ago
$429
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Mon, Sep 22 from Thunder Bay to Chicago, returning Mon, Sep 29, priced at $429 found 3 days ago
Porter Airlines
Fri, Sep 19 - Mon, Sep 22
YQT
Thunder Bay
MDW
Chicago
$451 Roundtrip, found 4 days ago
$451
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Fri, Sep 19 from Thunder Bay to Chicago, returning Mon, Sep 22, priced at $451 found 4 days ago
Porter Airlines
Mon, Sep 22 - Mon, Sep 29
YQT
Thunder Bay
MDW
Chicago
$453 Roundtrip, found 3 days ago
$453
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Mon, Sep 22 from Thunder Bay to Chicago, returning Mon, Sep 29, priced at $453 found 3 days ago
Porter Airlines
Sun, Aug 31 - Wed, Sep 3
YQT
Thunder Bay
MDW
Chicago
$467 Roundtrip, found 21 hours ago
$467
Roundtrip
found 21 hours ago
Select Porter Airlines flight, departing Sun, Aug 31 from Thunder Bay to Chicago, returning Wed, Sep 3, priced at $467 found 21 hours ago
Porter Airlines
Mon, Sep 22 - Mon, Sep 29
YQT
Thunder Bay
MDW
Chicago
$478 Roundtrip, found 3 days ago
$478
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Mon, Sep 22 from Thunder Bay to Chicago, returning Mon, Sep 29, priced at $478 found 3 days ago
Porter Airlines
Sun, Aug 31 - Wed, Sep 3
YQT
Thunder Bay
MDW
Chicago
$491 Roundtrip, found 21 hours ago
$491
Roundtrip
found 21 hours ago
Select Porter Airlines flight, departing Sun, Aug 31 from Thunder Bay to Chicago, returning Wed, Sep 3, priced at $491 found 21 hours ago
Porter Airlines
Fri, Sep 19 - Mon, Sep 22
YQT
Thunder Bay
MDW
Chicago
$502 Roundtrip, found 4 days ago
$502
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Fri, Sep 19 from Thunder Bay to Chicago, returning Mon, Sep 22, priced at $502 found 4 days ago
Flights from Thunder Bay (YQT) to Chicago (MDW)
Origin airport
Thunder Bay Intl.
Destination airport
Midway Intl.
Airlines serving
Porter Airlines
Roundtrip price
$403
Distance
461 mi

Thunder Bay to Chicago Flights

The cheapest times to fly from Thunder Bay to Chicago

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Thunder Bay to Chicago are during the month of September. You can find some of the cheapest flights from Thunder Bay to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Thunder Bay to Chicago

Sunday is one of the best days to book for cheap flights from Thunder Bay to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Thunder Bay to Chicago

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Thunder Bay to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $213 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Thunder Bay to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Thunder Bay to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW) cost?
Get a cheap one-way flight from $213 or cheap return flight from $404 from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW)?
Planning your trip for September may help you find better deals, as it's the cheapest month for flights between YQT and MDW. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from YQT to MDW. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW)?
There aren't any daily direct flights departing from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from YQT to MDW?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on various factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW)?
Book a flight from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW) last-minute?
Last-minute bookings from YQT to MDW are usually more expensive. To secure the best rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, it's possible to score a cheap ticket just before your departure.
Is it cheaper to book a YQT to MDW flight and hotel package?
Compared with arranging flights and hotels separately, booking a YQT to MDW flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Thunder Bay Intl. Airport (YQT) to Midway Intl. Airport (MDW)?
If you booked your YQT to MDW flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.