PHL - DLH

$248 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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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
6:15 am - 11:07 amPHL-DLH
5h 52m1 stop
Delta Logo
4:20 pm - 11:46 pmDLH-PHL
6h 26m1 stop
$248Delta
Find Deal
Wed, Feb 25 - Wed, Mar 4
Delta Logo
9:30 am - 3:24 pmPHL-DLH
6h 54m2 stops
Delta Logo
4:20 pm - 11:46 pmDLH-PHL
6h 26m1 stop
$254Delta
Find Deal
Sun, Dec 14 - Sun, Dec 21
Delta Logo
6:18 am - 11:20 amPHL-DLH
6h 02m1 stop
Delta Logo
4:10 pm - 11:55 pmDLH-PHL
6h 45m1 stop
$273Delta
Find Deal
Fri, Dec 5 - Sun, Dec 7
Delta Logo
5:30 am - 3:44 pmPHL-DLH
11h 14m2 stops
Delta Logo
4:24 pm - 12:51 amDLH-PHL
7h 27m2 stops
$309Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
6:15 am - 11:07 amPHL-DLH
5h 52m1 stop
Delta Logo
12:00 pm - 12:22 amDLH-PHL
11h 22m2 stops
$328Delta
Find Deal
Wed, Mar 11 - Sat, Mar 14
Delta Logo
6:15 am - 11:07 amPHL-DLH
5h 52m1 stop
Delta Logo
12:00 pm - 11:03 pmDLH-PHL
10h 03m2 stops
$334Delta
Find Deal
Tue, Nov 25 - Tue, Dec 2
Delta Logo
6:14 am - 11:21 amPHL-DLH
6h 07m1 stop
Delta Logo
12:01 pm - 12:51 amDLH-PHL
11h 50m2 stops
$349Delta
Find Deal
Tue, Nov 25 - Tue, Dec 2
United Airlines Logo
6:00 am - 10:38 amPHL-DLH
5h 38m1 stop
United Airlines Logo
7:55 am - 12:07 pmDLH-PHL
27h 12m1 stop
$388United Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
United Airlines Logo
10:05 am - 2:31 pmPHL-DLH
5h 26m1 stop
United Airlines Logo
2:57 pm - 9:10 pmDLH-PHL
5h 13m1 stop
$417United Airlines
Find Deal
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:55 am - 3:24 pmPHL-DLH
9h 29m2 stops
Delta Logo
12:00 pm - 11:08 pmDLH-PHL
10h 08m2 stops
$419Delta
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $248 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$248
Delta
Wed 2/25Wed 3/4
PHL - DLH • 1 stop
Cheapest one-way
$265
Delta
Wed 11/26
PHL - DLH • 1 stop
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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!
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

Cheapest flight$248
Most popular time to fly with an average 19% 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 $265 for a one-way ticket and $248 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 $447 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 $657 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 7992 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

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.

Delta is better for short flights and very low need for customer service. Avoid for longer flights

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

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

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