PHL - DLH

$188 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 7/5. 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

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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Cheap Flights from Philadelphia to Duluth

 
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.

Recent round-trip flight deals from Philadelphia to Duluth

KAYAK's recommended round-trip deals from the most popular airlines that fly from Philadelphia to Duluth.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Delta Logo
6:59 pm - 11:38 pmPHL-DLH
5h 39m1 stop
Delta Logo
4:16 pm - 11:58 pmDLH-PHL
6h 42m1 stop
$450Delta
Find Deal
Sat, May 31 - Sat, Jun 7
Delta Logo
6:00 am - 11:13 amPHL-DLH
6h 13m1 stop
Delta Logo
12:00 pm - 10:30 pmDLH-PHL
9h 30m2 stops
$456Delta
Find Deal
Sat, May 31 - Sat, Jun 7
Delta Logo
5:00 pm - 11:38 pmPHL-DLH
7h 38m2 stops
Delta Logo
12:00 pm - 10:30 pmDLH-PHL
9h 30m2 stops
$461Delta
Find Deal
Fri, Jun 6 - Sat, Jun 7
Delta Logo
9:59 am - 3:36 pmPHL-DLH
6h 37m2 stops
Delta Logo
5:10 am - 3:53 pmDLH-PHL
9h 43m2 stops
$554Delta
Find Deal
Sat, May 31 - Sat, Jun 7
Delta Logo
5:01 pm - 11:40 pmPHL-DLH
7h 39m2 stops
Delta Logo
6:19 pm - 12:24 amDLH-PHL
5h 05m1 stop
$582Delta
Find Deal
Fri, Jun 20 - Mon, Jun 23
Delta Logo
5:01 pm - 11:40 pmPHL-DLH
7h 39m2 stops
Delta Logo
6:19 pm - 12:24 amDLH-PHL
5h 05m1 stop
$628Delta
Find Deal
Fri, Jun 20 - Mon, Jun 23
Delta Logo
5:01 pm - 11:40 pmPHL-DLH
7h 39m2 stops
Delta Logo
2:43 pm - 12:59 amDLH-PHL
9h 16m2 stops
$663Delta
Find Deal
Fri, Jun 20 - Mon, Jun 23
Delta Logo
5:01 pm - 11:40 pmPHL-DLH
7h 39m2 stops
Delta Logo
2:43 pm - 12:59 amDLH-PHL
9h 16m2 stops
$719Delta
Find Deal
Fri, Jun 20 - Mon, Jun 23
Delta Logo
6:00 am - 10:16 amPHL-DLH
5h 16m1 stop
Delta Logo
6:19 pm - 12:24 amDLH-PHL
5h 05m1 stop
$721Delta
Find Deal
Fri, Jun 20 - Mon, Jun 23
Delta Logo
7:05 pm - 11:40 pmPHL-DLH
5h 35m1 stop
Delta Logo
6:19 pm - 12:24 amDLH-PHL
5h 05m1 stop
$722Delta
Find Deal
Fri, Jun 20 - Mon, Jun 23

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.

What is the cheapest month to fly from Philadelphia to Duluth?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia 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 Philadelphia to Duluth is January, where tickets cost $248 (return) on average. On the other hand, the most expensive months are November and August, where the average cost of round-trip tickets is $615 and $587 respectively.

Good to know

Low season

April

High season

August

Cheapest flight

$188
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 31% 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 $188 for a one-way ticket and $450 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Philadelphia and Duluth, with SkyTeam 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 $464 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 $544 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.

See more FAQs

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.
8.0
DeltaOverall score based on 7916 reviews
7.3Food
8.5Crew
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

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

10.0 ExcellentGreg, Mar 2025PHX - MSP
Read more Delta reviews

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

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

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 love my flight attendant Faith, always smiles always helpful. She makes the flight experience wonderful thank you

My return flights were changed by the airline and my preferred seat selection with extra legroom was not transferred to the new flights

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

New boarding doesn't make sense. Filling front first is slow.

Nothing unusual. It was fine. I hate having to pay extra for my seat.

We splurged and decided to fly first class. Seats were roomy. But flight crew arrived late to the airport. That delayed our flight. Most of the passengers had to try to make connections flights. I felt bad for them. We checked 4 bags. We got three from the baggage claim carousel. 4th one was lost. Delta online help wasn’t good. Baggage claim staff were sympathetic and nice but we waited around for almost 2 hours and it had t been found. They did find it several hours later and we had to drive back to airport to retrieve it. I won’t be splurging on 1st. Lass again anytime soon. I think we got worse service. I am also not a huge fan of delta but we have family in ATL so we don’t have a ton of choice. What should have been an easy flight turned into a stressful event due to flight crew tardiness and baggage mishandling.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

Food and flight attendents with positive dispositions and friendly behavior, more professional attitudes

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

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

Information on your arrival and departure airports

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