DLH - PHL

$248 Find Cheap Flights from Duluth to Philadelphia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Philadelphia departing on 3/4. 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 Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Philadelphia, 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 Duluth to Philadelphia, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$248
Overall average: $424
Delta
Wed 3/4Sat 3/7
DLH - PHL • 1 stop
Cheapest one-way
$453
Typical prices: $314-$333
Delta
Mon 12/1
DLH - PHL • 1 stop
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
When to travel
June
Cheapest • 43% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Duluth to Philadelphia (DLH-PHL)

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

Wed, Mar 4 - Sat, Mar 7
Delta Logo
4:20 pm - 11:46 pmDLH-PHL
6h 26m1 stop
Delta Logo
6:15 am - 11:07 amPHL-DLH
5h 52m1 stop
$248Delta
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Fri, Nov 21 - Mon, Dec 8
Delta Logo
4:18 pm - 11:50 pmDLH-PHL
6h 32m1 stop
Delta Logo
6:30 pm - 11:59 pmPHL-DLH
6h 29m1 stop
$342Delta
Find Deal
Fri, Nov 21 - Mon, Dec 8
Delta Logo
4:18 pm - 11:50 pmDLH-PHL
6h 32m1 stop
Delta Logo
8:00 am - 7:35 pmPHL-DLH
12h 35m2 stops
$348Delta
Find Deal
Wed, Mar 4 - Sat, Mar 7
Delta Logo
12:00 pm - 5:20 pmDLH-PHL
4h 20m1 stop
Delta Logo
6:00 am - 3:24 pmPHL-DLH
10h 24m2 stops
$387Delta
Find Deal
Wed, Mar 4 - Sat, Mar 7
Delta Logo
4:20 pm - 11:46 pmDLH-PHL
6h 26m1 stop
Delta Logo
9:30 am - 11:02 pmPHL-DLH
14h 32m2 stops
$397Delta
Find Deal
Fri, Nov 21 - Mon, Dec 8
Delta Logo
12:01 pm - 12:51 amDLH-PHL
11h 50m2 stops
Delta Logo
8:00 am - 7:35 pmPHL-DLH
12h 35m2 stops
$524Delta
Find Deal
Mon, Dec 1 - Wed, Dec 31
United Airlines Logo
7:55 am - 9:35 amDLH-PHL
24h 40m2 stops
United Airlines Logo
5:00 pm - 10:55 pmPHL-DLH
6h 55m1 stop
$537United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
Delta Logo
12:00 pm - 11:08 pmDLH-PHL
10h 08m2 stops
Delta Logo
6:00 am - 3:24 pmPHL-DLH
10h 24m2 stops
$542Delta
Find Deal
Mon, Dec 1 - Wed, Dec 31
United Airlines Logo
7:55 am - 9:35 amDLH-PHL
24h 40m2 stops
United Airlines Logo
10:39 am - 2:28 pmPHL-DLH
28h 49m2 stops
$552United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
Delta Logo
4:20 pm - 12:22 amDLH-PHL
7h 02m2 stops
Delta Logo
6:00 am - 3:24 pmPHL-DLH
10h 24m2 stops
$562Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Duluth to Philadelphia flights

Get data-powered insights and trends into flights from Duluth to Philadelphia 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 Duluth to Philadelphia?

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

If you are looking for a flight deal from Duluth to Philadelphia, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Philadelphia, Saturday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Philadelphia, 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 Duluth to Philadelphia is June, where tickets cost $260 (return) on average. On the other hand, the most expensive months are October and August, where the average cost of round-trip tickets is $643 and $632 respectively.

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Good to know

Low seasonFebruary
Cheapest flight$248
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 38% increase in price.
Flight from Duluth to Philadelphia

When to book flights from Duluth to Philadelphia

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

  • What is the cheapest flight from Duluth to Philadelphia?

    In the last 3 days, the lowest price for a flight from Duluth to Philadelphia was $453 for a one-way ticket and $248 for a round-trip.

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

    No, a passport isn't needed to fly from Duluth to Philadelphia. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Duluth to Philadelphia?

    On your way to Philadelphia, you’ll fly out from Duluth Intl. You’ll be landing at Philadelphia.

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

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

  • Which airline alliances offer flights from Duluth to Philadelphia?

    SkyTeam is the only airline alliance operating flights between Duluth and Philadelphia.

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

    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 Duluth to Philadelphia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Duluth 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 Duluth to Philadelphia?

    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 Philadelphia with an airline and back to Duluth with another airline. Booking your flights between Duluth and PHL 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 Duluth to Philadelphia?

    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 Philadelphia from Duluth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Duluth to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Philadelphia. 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 Duluth to Philadelphia? 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
7.3Food
8.5Crew
7.9Comfort
8.2Boarding
7.9Entertainment
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.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

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

Information on your arrival and departure airports

Duluth (DLH)
Philadelphia (PHL)

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