PHL - DLH

$298 Find Cheap Flights from Philadelphia 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 Philadelphia to Duluth departing on 4/12. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$328
United Airlines
Fri 4/17Mon 4/20
PHL - DLH • 1 stop
Cheapest one-way
$298
Delta
Sun 4/12
PHL - DLH • 1 stop
Top airlines
Cheapest • from $328 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Duluth. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $501 (round-trip)
Shortest trip • 5h 35m (one-way)
Insights
Insights
Insights
Insights
Start a new search
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 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

Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
11:36 am - 6:07 pm
PHL
-
DLH
7h 31m
1 stop
United Airlines Logo
6:57 pm - 12:59 am
DLH
-
PHL
5h 02m
1 stop
$328United Airlines
Fri, Apr 24 - Sun, Apr 26
Delta Logo
6:58 pm - 10:46 pm
PHL
-
DLH
4h 48m
1 stop
Delta Logo
8:07 am - 2:01 pm
DLH
-
PHL
4h 54m
1 stop
$343Delta
Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 am - 10:57 am
PHL
-
DLH
5h 42m
1 stop
Delta Logo
5:10 am - 1:27 pm
DLH
-
PHL
7h 17m
2 stops
$349Delta
Thu, Jul 16 - Mon, Jul 20
United Airlines Logo
6:00 am - 10:35 am
PHL
-
DLH
5h 35m
1 stop
United Airlines Logo
6:25 pm - 12:57 am
DLH
-
PHL
5h 32m
1 stop
$354United Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 am - 10:57 am
PHL
-
DLH
5h 42m
1 stop
Delta Logo
5:10 am - 10:33 am
DLH
-
PHL
4h 23m
1 stop
$358Delta
Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 am - 10:57 am
PHL
-
DLH
5h 42m
1 stop
Delta Logo
5:10 am - 1:27 pm
DLH
-
PHL
7h 17m
2 stops
$364Delta
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
1:27 pm - 6:07 pm
PHL
-
DLH
5h 40m
1 stop
United Airlines Logo
11:19 am - 5:32 pm
DLH
-
PHL
5h 13m
1 stop
$365United Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 am - 10:57 am
PHL
-
DLH
5h 42m
1 stop
Delta Logo
5:10 am - 10:33 am
DLH
-
PHL
4h 23m
1 stop
$378Delta
Thu, Aug 27 - Sun, Aug 30
Delta Logo
6:15 am - 10:57 am
PHL
-
DLH
5h 42m
1 stop
Delta Logo
5:10 am - 1:27 pm
DLH
-
PHL
7h 17m
2 stops
$384Delta
Tue, Apr 21 - Sat, Apr 25
United Airlines Logo
11:36 am - 6:07 pm
PHL
-
DLH
7h 31m
1 stop
United Airlines Logo
3:08 pm - 9:32 pm
DLH
-
PHL
5h 24m
1 stop
$398United Airlines
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 ($328) and Delta ($343).

Good to know

Low seasonOctober
Cheapest flight$298
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly and prices are also 11% lower on average.
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 $298 for a one-way ticket and $328 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 $476 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 8288 reviews
7.9Comfort
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

4.0 OkayAbigail, Mar 2026
LGA - MSP
Read more Delta reviews

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

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

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

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

Information on your arrival and departure airports