STL - DLH

$261 Find Cheap Flights from St. Louis to Duluth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Duluth departing on 9/26. 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

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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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

Fri, Sep 26 - Sun, Sep 28
Delta Logo
6:00 am - 10:07 amSTL-DLH
4h 07m1 stop
Delta Logo
5:10 am - 8:37 amDLH-STL
3h 27m1 stop
$261Delta
Find Deal
Fri, Sep 26 - Sun, Sep 28
Delta Logo
6:00 am - 10:07 amSTL-DLH
4h 07m1 stop
Delta Logo
5:10 am - 8:37 amDLH-STL
3h 27m1 stop
$293Delta
Find Deal
Thu, Sep 11 - Sun, Sep 14
Delta Logo
6:00 am - 10:07 amSTL-DLH
4h 07m1 stop
Delta Logo
5:10 am - 8:37 amDLH-STL
3h 27m1 stop
$348Delta
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
5:30 pm - 6:30 pmSTL-DLH
25h 00m1 stop
United Airlines Logo
9:45 am - 2:19 pmDLH-STL
4h 34m1 stop
$514United Airlines
Find Deal
Fri, Sep 26 - Sun, Sep 28
United Airlines Logo
5:18 pm - 2:32 pmSTL-DLH
21h 14m2 stops
United Airlines Logo
8:00 am - 10:49 amDLH-STL
26h 49m1 stop
$613United Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
5:30 pm - 6:30 pmSTL-DLH
25h 00m1 stop
United Airlines Logo
8:00 am - 11:53 pmDLH-STL
15h 53m2 stops
$711United Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14
United Airlines Logo
8:15 am - 10:05 pmSTL-DLH
13h 50m2 stops
United Airlines Logo
9:45 am - 2:19 pmDLH-STL
4h 34m1 stop
$794United Airlines
Find Deal
Fri, Sep 26 - Sun, Sep 28
Delta Logo
6:00 am - 10:07 amSTL-DLH
4h 07m1 stop
Delta Logo
5:10 am - 1:26 pmDLH-STL
8h 16m2 stops
$869Delta
Find Deal
Fri, Sep 26 - Sun, Sep 28
Delta Logo
10:40 am - 7:13 pmSTL-DLH
8h 33m2 stops
Delta Logo
5:10 am - 1:26 pmDLH-STL
8h 16m2 stops
$1,485Delta
Find Deal
Fri, Sep 26 - Sun, Sep 28
Delta Logo
10:40 am - 7:13 pmSTL-DLH
8h 33m2 stops
Delta Logo
5:10 am - 1:26 pmDLH-STL
8h 16m2 stops
$1,544Delta
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.

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 November and June, where the average cost of round-trip tickets is $658 and $513 respectively.

Good to know

Low seasonMarch
Cheapest flight$261
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 3% 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 $261 for a round-trip ticket.

  • 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Duluth, with SkyTeam 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 $338 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $536 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.
8.0
DeltaOverall score based on 7982 reviews
8.2Boarding
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

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!

10.0 ExcellentHartaj, Aug 2025STL - LGA
Read more Delta reviews

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.

Delta is a premier airline so my expectations are most always met.

Everything was good except when we're on a 6 hour flight at dinner time and all they offer as part of the fare are little bags of junk food, it's disappointing. Bring back food service without an added price.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

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

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