STL - DLH

$186 Find Cheap Flights from St. Louis to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Duluth departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Duluth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Duluth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Duluth, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$238
Overall average: $328
Delta
Sat 3/7Wed 3/11
STL - DLH • 1 stop
Cheapest one-way
$186
Delta
Wed 12/10
STL - DLH • 1 stop
Top airlines
Delta
Cheapest • from $238 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 34% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Duluth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Duluth (STL-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Duluth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Duluth

Sat, Mar 7 - Wed, Mar 11
Delta Logo
6:10 am - 11:33 amSTL-DLH
5h 23m1 stop
Delta Logo
4:20 pm - 11:10 pmDLH-STL
6h 50m1 stop
$238Delta
Find Deal
Fri, Feb 6 - Sun, Feb 8
Delta Logo
6:10 am - 11:16 amSTL-DLH
5h 06m1 stop
Delta Logo
4:41 pm - 11:25 pmDLH-STL
6h 44m1 stop
$328Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
6:10 am - 11:33 amSTL-DLH
5h 23m1 stop
Delta Logo
4:20 pm - 8:57 amDLH-STL
16h 37m2 stops
$380Delta
Find Deal
Wed, Dec 10 - Wed, Dec 17
United Airlines Logo
5:27 pm - 9:59 pmSTL-DLH
4h 32m1 stop
United Airlines Logo
2:57 pm - 10:45 pmDLH-STL
7h 48m1 stop
$528United Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 8
United Airlines Logo
6:00 pm - 2:30 pmSTL-DLH
20h 30m2 stops
United Airlines Logo
7:40 am - 12:29 pmDLH-STL
4h 49m1 stop
$556United Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 8
Delta Logo
3:31 pm - 7:35 pmSTL-DLH
4h 04m1 stop
Delta Logo
8:00 am - 2:38 pmDLH-STL
6h 38m1 stop
$583Delta
Find Deal
Wed, Dec 10 - Wed, Dec 17
United Airlines Logo
8:30 am - 9:59 pmSTL-DLH
13h 29m2 stops
United Airlines Logo
7:55 am - 2:25 pmDLH-STL
6h 30m1 stop
$594United Airlines
Find Deal
Wed, Dec 31 - Sun, Jan 4
United Airlines Logo
6:35 pm - 10:55 pmSTL-DLH
4h 20m1 stop
United Airlines Logo
7:50 am - 12:27 pmDLH-STL
4h 37m1 stop
$712United Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30
United Airlines Logo
10:00 am - 2:31 pmSTL-DLH
4h 31m1 stop
United Airlines Logo
7:55 am - 10:45 pmDLH-STL
14h 50m1 stop
$765United Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30
United Airlines Logo
4:43 pm - 2:31 pmSTL-DLH
21h 48m2 stops
United Airlines Logo
7:55 am - 3:46 pmDLH-STL
7h 51m1 stop
$909United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Duluth flights

Get data-powered insights and trends into flights from St. Louis to Duluth to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Duluth?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Duluth departing in March.

What’s the cheapest day of the week to fly from St. Louis to Duluth?

The average price of all round-trip flights from St. Louis to Duluth clicked on KAYAK for each day over the last 12 months.

For St. Louis to Duluth, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Duluth back to St. Louis, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

What is the cheapest month to fly from St. Louis to Duluth?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Duluth, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Duluth is April, where tickets cost $238 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $528 and $460 respectively.

Good to know

Low seasonMarch
Cheapest flight$186
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from St. Louis to Duluth

When to book flights from St. Louis to Duluth

Are your dates flexible? Find out the best times to travel from St. Louis to Duluth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Duluth

  • What is the cheapest flight from St. Louis to Duluth?

    In the last 3 days, the lowest price for a flight from St. Louis to Duluth was $186 for a one-way ticket and $238 for a round-trip.

  • Do I need a passport to fly between St. Louis and Duluth?

    A passport is not required to fly from St. Louis to Duluth.

  • Which aircraft models fly most regularly from St. Louis to Duluth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Duluth?

    Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Duluth, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Duluth, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Duluth are Delta and United Airlines. With an average price for the route of $328 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $492 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Duluth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Duluth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Duluth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Duluth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Duluth with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and DLH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Duluth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Duluth from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Duluth

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Duluth. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Duluth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8009 reviews
8.5Crew
7.9Entertainment
8.1Boarding
7.9Comfort
7.3Food
Airline reviews

On time flight. Seat comfort could be better in the Comfort section.

10.0 ExcellentMichael, Oct 2025CLT - MSP
Read more Delta reviews

On time flight. Seat comfort could be better in the Comfort section.

My only complaint on any flight is meals but your gnocchi was good. The worst is breakfast. I can’t understand why you don’t just serve something simple like yogurt, fruit and a muffin or cinnamon roll.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

It was beautiful easy and smooth experience. Thank you. Will definitely get Delta for my next travel.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Premium Plus is a really good idea for longer flights

Everything you need to know for your flight from St. Louis to Duluth

Information on your arrival and departure airports