$334 Find Cheap Flights from Philadelphia to Kaua'i

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 Kaua'i departing on 9/25. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Kaua'i

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

Save 22% 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.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Kaua'i

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lihue
Lihue2 stops$634
Lihue
Lihue2 stops$634

Book Cheap Philadelphia to Kaua'i Plane Tickets

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

Tue, Mar 3 - Wed, Mar 4
Delta Logo
5:55 am - 7:47 pmPHL-LIH
18h 52m2 stops
Delta Logo
10:45 pm - 12:22 amLIH-PHL
20h 37m2 stops
$634Delta
Find Deal
Mon, Oct 20 - Sun, Oct 26
Alaska Airlines Logo
7:11 pm - 1:32 pmPHL-LIH
24h 21m2 stops
Alaska Airlines Logo
1:28 pm - 6:12 pmLIH-PHL
22h 44m2 stops
$650Alaska Airlines
Find Deal
Mon, Oct 20 - Sun, Oct 26
Alaska Airlines Logo
7:11 pm - 7:26 pmPHL-LIH
30h 15m2 stops
Alaska Airlines Logo
10:23 pm - 5:42 amLIH-PHL
25h 19m1 stop
$658Alaska Airlines
Find Deal
Mon, Oct 20 - Sun, Oct 26
Alaska Airlines Logo
7:11 pm - 7:26 pmPHL-LIH
30h 15m2 stops
Alaska Airlines Logo
1:28 pm - 6:12 pmLIH-PHL
22h 44m2 stops
$666Alaska Airlines
Find Deal
Mon, Sep 29 - Sat, Oct 4
United Airlines Logo
8:00 am - 3:36 pmPHL-LIH
13h 36m1 stop
United Airlines Logo
10:58 pm - 5:27 pmLIH-PHL
12h 29m1 stop
$717United Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 12
 Logo
8:43 pm - 11:57 amPHL-LIH
45h 14m2 stops
 Logo
1:27 pm - 7:02 amLIH-PHL
35h 35m1 stop
Sat, Jan 10 - Sat, Jan 17
American Airlines Logo
10:40 am - 7:46 pmPHL-LIH
14h 06m1 stop
American Airlines Logo
10:10 pm - 4:00 pmLIH-PHL
12h 50m1 stop
$721American Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
American Airlines Logo
7:00 am - 3:01 pmPHL-LIH
13h 01m1 stop
American Airlines Logo
9:13 pm - 2:43 pmLIH-PHL
11h 30m1 stop
$722American Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
United Airlines Logo
8:08 am - 4:58 pmPHL-LIH
13h 50m1 stop
United Airlines Logo
2:16 pm - 10:24 amLIH-PHL
15h 08m2 stops
$726United Airlines
Find Deal
Sun, Sep 28 - Thu, Oct 2
 Logo
5:37 pm - 11:56 amPHL-LIH
24h 19m1 stop
 Logo
1:36 pm - 5:55 amLIH-PHL
34h 19m1 stop
Booking Insights

KAYAK's insights & trends for Philadelphia to Kaua'i flights

Get data-powered insights and trends into flights from Philadelphia to Kaua'i to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Philadelphia to Kaua'i?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $513, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Philadelphia to Kaua'i?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Kaua'i, 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 Kaua'i is November, when tickets cost $711 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,259 and $1,118 respectively.

What’s the cheapest day of the week to fly from Philadelphia to Kaua'i?

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

Your flight ticket price will generally be cheaper if you fly to Kaua'i on a Wednesday and more expensive on a Sunday. On your return trip to Philadelphia, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

How far in advance should I book a flight from Philadelphia to Kaua'i?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Kaua'i, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Kaua'i, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$334
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Philadelphia to Lihue

FAQs - booking Kaua'i flights

  • How does KAYAK find such low prices on flights from Philadelphia to Kaua'i?

    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 Kaua'i.

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

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

    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 from Philadelphia to Kaua'i with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Kaua'i?

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

  • What is the cheapest time of day to fly to Kaua'i?

    The cheapest time of day to fly to Kaua'i is generally in the morning, when round-trip flights cost $890 on average. Morning departures are around 24% cheaper than evening flights, on average. The most expensive time of day to fly to Kaua'i is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,169.

Reviews of the top 3 airlines serving from Philadelphia to Kaua'i

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Kaua'i. 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 Kaua'i? 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
Alaska AirlinesOverall score based on 10000 reviews
8.5Crew
7.1Food
7.8Comfort
7.0Entertainment
8.1Boarding
Airline reviews

Mid flight we were bothered by a bee. Kind of odd, but a bee allergy made it a bit stressful. Attendants passed by our aisle during service multiple times. Otherwise, it was fine.

6.0 GoodToby, Aug 2025PHL - SEA
Read more Alaska Airlines reviews

Mid flight we were bothered by a bee. Kind of odd, but a bee allergy made it a bit stressful. Attendants passed by our aisle during service multiple times. Otherwise, it was fine.

Terrible. Would never fly again. Took them several hours to prepare the plane and and reached my destination 4 hours late.

Our boarding was delayed due to two flat tires, but I appreciate the focus on safety. I also appreciated the additional offerings for drinks which never happened before except on Hawaiian Airlines. The hospitality is fantastic! Glad I upgraded to premium seats for the extra leg room as I was getting frustrated when the person in front of me was very restless and kept shifting. Otherwise, it was a fantastic experience.

Had to sit and wait to get off the plane for closeto a hour. My son also flying to a different destination that day also had like a 2.5 hr delay

Tickets we booked together in January became two different connecting flights. VERY PISSED a about this and a terrible start to our bucket list vacation

Could not check in online - had to get boarding passes at the ticket counter and our daughter got bumped off our connecting flight. NOT OK!

I needed more space to sleep on an overnight flight.

Our flight time was drastically changed which caused us to lose a day of vacation

Wonderful respectful staff for a short flight late at night...lots of considerations all met!

Flight was delayed which led to missed connection, but rebooked on a more direct flight at the last minute and arrived in Juneau on time with all our luggage. Little stressful and our family seating got split, but it all worked out in the end.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Everything you need to know for your flight to Kaua'i

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.