PHL - DLH

$283 Find Cheap Flights from Philadelphia 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 Philadelphia to Duluth departing on 2/19. 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 Philadelphia 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 Philadelphia to Duluth, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$283
United Airlines
Thu 2/19Wed 2/25
PHL - DLH • 1 stop
Cheapest one-way
$354
Delta
Fri 6/19
PHL - DLH • 1 stop
Top airlines
United Airlines
Cheapest • from $283 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
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We hope you love your trip to Duluth!
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Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Duluth (PHL-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia 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 Philadelphia to Duluth

Thu, Feb 19 - Wed, Feb 25
United Airlines Logo
6:27 am - 10:43 am
PHL
-
DLH
5h 16m
1 stop
United Airlines Logo
7:50 am - 2:19 pm
DLH
-
PHL
5h 29m
1 stop
$283United Airlines
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:10 am - 11:30 am
PHL
-
DLH
6h 20m
1 stop
Delta Logo
4:15 pm - 11:44 pm
DLH
-
PHL
6h 29m
1 stop
$302Delta
Thu, Feb 19 - Wed, Feb 25
Delta Logo
6:10 am - 11:30 am
PHL
-
DLH
6h 20m
1 stop
Delta Logo
12:15 pm - 12:24 am
DLH
-
PHL
11h 09m
2 stops
$308Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:10 am - 11:30 am
PHL
-
DLH
6h 20m
1 stop
Delta Logo
4:15 pm - 11:44 pm
DLH
-
PHL
6h 29m
1 stop
$314Delta
Thu, Feb 19 - Wed, Feb 25
Delta Logo
6:10 am - 11:30 am
PHL
-
DLH
6h 20m
1 stop
Delta Logo
12:15 pm - 12:24 am
DLH
-
PHL
11h 09m
2 stops
$320Delta
Thu, Mar 26 - Thu, Apr 2
United Airlines Logo
6:30 am - 10:43 am
PHL
-
DLH
5h 13m
1 stop
United Airlines Logo
7:45 am - 2:16 pm
DLH
-
PHL
5h 31m
1 stop
$353United Airlines
Wed, Feb 25 - Wed, Mar 4
Delta Logo
5:25 pm - 11:55 pm
PHL
-
DLH
7h 30m
2 stops
Delta Logo
4:15 pm - 11:44 pm
DLH
-
PHL
6h 29m
1 stop
$355Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
5:25 pm - 11:55 pm
PHL
-
DLH
7h 30m
2 stops
Delta Logo
4:15 pm - 11:44 pm
DLH
-
PHL
6h 29m
1 stop
$357Delta
Fri, Feb 6 - Fri, Feb 13
Delta Logo
6:57 pm - 11:52 pm
PHL
-
DLH
5h 55m
1 stop
Delta Logo
4:15 pm - 11:44 pm
DLH
-
PHL
6h 29m
1 stop
$424Delta
Fri, Feb 6 - Fri, Feb 13
Delta Logo
5:17 pm - 11:52 pm
PHL
-
DLH
7h 35m
2 stops
Delta Logo
4:15 pm - 11:44 pm
DLH
-
PHL
6h 29m
1 stop
$430Delta
Booking Insights

KAYAK's insights & trends for Philadelphia to Duluth flights

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

Which airlines provide the cheapest flights from Philadelphia to Duluth?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Philadelphia to Duluth were found on United Airlines ($283) and Delta ($302).

Good to know

Low seasonMarch
Cheapest flight$283
Best time to beat the crowds with an average 48% drop in price.
Flight from Philadelphia to Duluth

When to book flights from Philadelphia to Duluth

Are your dates flexible? Find out the best times to travel from Philadelphia 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 Philadelphia to Duluth

  • What is the cheapest flight from Philadelphia to Duluth?

    In the last 3 days, the lowest price for a flight from Philadelphia to Duluth was $354 for a one-way ticket and $283 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Duluth?

    No

  • Which aircraft models fly most regularly from Philadelphia to Duluth?

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

  • Which airline alliances offer flights from Philadelphia to Duluth?

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

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

    The two airlines most popular with KAYAK users for flights from Philadelphia to Duluth are Delta and United Airlines. With an average price for the route of $477 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 $559 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Philadelphia 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 Philadelphia to Duluth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from Philadelphia 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 Philadelphia 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 Philadelphia with another airline. Booking your flights between Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia to Duluth

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia 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 Philadelphia 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 8118 reviews
7.9Comfort
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
Airline reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

2.0 MediocreAndrea, Jan 2026
CMH - MSP
Read more Delta reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

Good seats in Main cabin, excellent service and excellent landing

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

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

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

Delayed, toilets did not flush, pilot parked to far away from Gate

Everything you need to know for your flight from Philadelphia to Duluth

Information on your arrival and departure airports