PHL - DLH

$268 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 2/25. 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
$268
Delta
Wed 2/25Wed 3/4
PHL - DLH • 1 stop
Cheapest one-way
Multiple Airlines
Tue 12/16
PHL - DLH • multi-stop
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We hope you love your trip to Duluth!
Flight Deals
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

Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:00 am - 11:31 am
PHL
-
DLH
6h 31m1 stop
Delta Logo
12:15 pm - 5:56 pm
DLH
-
PHL
4h 41m1 stop
$268Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:00 am - 11:31 am
PHL
-
DLH
6h 31m1 stop
Delta Logo
8:00 am - 7:25 pm
DLH
-
PHL
10h 25m2 stops
$274Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
11:27 am - 3:32 pm
PHL
-
DLH
5h 05m1 stop
Delta Logo
12:15 pm - 5:56 pm
DLH
-
PHL
4h 41m1 stop
$288Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
9:41 am - 3:32 pm
PHL
-
DLH
6h 51m2 stops
Delta Logo
4:14 pm - 11:44 pm
DLH
-
PHL
6h 30m1 stop
$294Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
9:41 am - 3:32 pm
PHL
-
DLH
6h 51m2 stops
Delta Logo
8:00 am - 7:25 pm
DLH
-
PHL
10h 25m2 stops
$299Delta
Fri, Jan 9 - Sun, Jan 11
Delta Logo
11:27 am - 3:44 pm
PHL
-
DLH
5h 17m1 stop
Delta Logo
5:00 am - 10:31 am
DLH
-
PHL
4h 31m1 stop
$362Delta
Fri, Jan 9 - Sun, Jan 11
Delta Logo
9:40 am - 3:44 pm
PHL
-
DLH
7h 04m2 stops
Delta Logo
5:00 am - 10:31 am
DLH
-
PHL
4h 31m1 stop
$368Delta
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
10:10 am - 2:30 pm
PHL
-
DLH
5h 20m1 stop
United Airlines Logo
3:05 pm - 9:36 pm
DLH
-
PHL
5h 31m1 stop
$449United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
7:45 pm - 2:30 pm
PHL
-
DLH
19h 45m2 stops
United Airlines Logo
3:05 pm - 9:36 pm
DLH
-
PHL
5h 31m1 stop
$496United Airlines
Fri, Jan 9 - Sun, Jan 11
Delta Logo
12:11 pm - 11:52 pm
PHL
-
DLH
12h 41m2 stops
Delta Logo
4:24 pm - 12:21 am
DLH
-
PHL
6h 57m2 stops
$509Delta
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.

What’s the cheapest day of the week to fly from Philadelphia to Duluth?

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

For Philadelphia to Duluth, Saturday is the cheapest day to fly on average and Monday is the most expensive. Flying from Duluth back to Philadelphia, the best deals are generally found on Thursday, with Friday being the most expensive.

Good to know

Low seasonMarch
Cheapest flight$268
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly with an average 15% increase 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 $268 for a round-trip ticket.

  • 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 $486 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 8010 reviews
8.1Boarding
7.9Entertainment
8.5Crew
7.9Comfort
7.3Food
Airline reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

10.0 ExcellentMargaret, Dec 2025
BOS - PIT
Read more Delta reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

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

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

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

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

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

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

Information on your arrival and departure airports