$842 Cheap Flights from Thunder Bay (YQT) to Duluth (DLH)

View $842 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Thunder Bay, ON (YQT-Thunder Bay Intl.) to Duluth, MN (DLH-Duluth Intl.)

Cheap Flights from Thunder Bay to Duluth (YQT-DLH)

Prices were available within the past 7 days and start at $842 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH) cost?
Grab a cheap one-way flight from $842 or cheap return flight from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH)?
is the most affordable month to fly from YQT to DLH. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from YQT to DLH. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH)?
Nonstop flights from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YQT to DLH?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Duluth Intl. Airport (DLH)?
Book a flight from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures 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 Duluth Intl. Airport (DLH) last-minute?
Waiting until just before your departure to book your flight from YQT to DLH generally means paying more. While you may find some last-minute deals, there's no guarantee. Be flexible with your itinerary to boost your chances of landing a bargain.
Is it cheaper to book a YQT to DLH flight and hotel package?
Securing a YQT to DLH flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Thunder Bay Intl. Airport (YQT) to Duluth Intl. Airport (DLH)?
If you booked your YQT to DLH flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, 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 further details.

Travel information

Travel information

Origin airport
Thunder Bay Intl.
Destination airport
Duluth Intl.
Distance
170 mi

Book with confidence

Book with confidence

Thunder Bay to Duluth Flights

The cheapest times to fly from Thunder Bay to Duluth

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 Duluth are during the month of . You can find some of the cheapest flights from Thunder Bay to Duluth with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Thunder Bay to Duluth: 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 Duluth

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 Duluth in 2025. You can also book with separate airlines for your outbound and return journeys, from $842 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 Duluth 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 Duluth 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.

 

Thunder Bay to Duluth Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.