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KAYAK's insights & trends for flights to Southeast Asia

Get data-powered insights and trends into flights to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Southeast Asia?

The cheapest ticket to Southeast Asia from the United States found in the last 5 days was to Singapore, at S$ 956 return. The most popular route is Newark Airport (EWR) to Singapore (SIN) and the cheapest return ticket found on this route in the last 5 days was S$ 956.

What is the cheapest month to fly from the United States to Southeast Asia?

The cheapest month for flights from the United States to Southeast Asia is February, when tickets cost S$ 625 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is S$ 1,073 and S$ 1,051 respectively.

What is the cheapest time of day to fly to Southeast Asia?

The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost S$ 1,244 on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is S$ 1,244.

How far in advance should I book a flight from the United States to Southeast Asia?

To get a below-average price on a flight from the United States to Southeast Asia, you should book around 2 weeks before departure, which saves you about 38% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Which is the cheapest airport to fly into in Southeast Asia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Southeast Asia is Manila Ninoy Aquino Intl Airport (MNL), with an average flight price of S$ 595.

Good to know

Low season

August
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (33% more expensive on average)

Flights from the United States to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from the United States to Southeast Asia 
Verified travelerFlew with Philippine Airlines-Sept 2026
Stay in Manila 1 night rather then trying to rush to other terminal to province
Verified travelerFlew with Singapore Airlines-Jun 2026
Always book directly with the airlines and avoid aggregators and agents
LorynFlew with Philippine Airlines-Jul 2026
In economy, the movies did not work only watching series. Be sure to charge electronics for any media entertainment.
ClaudiaFlew with United Airlines-Jun 2026
Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future
puraviFlew with Singapore Airlines-Dec 2025
Pay the extra for individual seats or for the front row seats. Food was okay.
RobertFlew with Philippine Airlines-Jun 2025
Ensure your seat assignments are correct before accepting boarding passes!
selamatFlew with Singapore Airlines-Dec 2024
Having comfortable clothing is the key for having a good trip and trying get some sleep.
DavidFlew with Singapore Airlines-Feb 2025
Bring a mattress pad with you if you plan on sleeping in business class.
Verified travelerFlew with Philippine Airlines-Oct 2024
Do not do overweight on baggage. It's only 25 kg per luggage
Verified travelerFlew with Singapore Airlines-Aug 2024
If you need special meals book them early
CocoFlew with Singapore Airlines-May 2024
please dress comfortable ... even if you have to put on your pj , bring your favorite snacks wear compression socks
Verified travelerFlew with Philippine Airlines-May 2024
check in online be there early and complete etravel before going to counter
AjayFlew with Singapore Airlines-Dec 2023
Although the flight is listed as 17 1/2 hours, actual flight time was only 16 1/2. Bring a sleep mask to ensure you rest during your flight - it helps reduce so e of the flight time and helps you arrive more refreshed.
Verified travelerFlew with Singapore Airlines-Jan 2024
The Singapore Changi airport if huge. After getting of the aircraft, the walk to immigration control was long. Once you get to the control area, the process was quick and easy.

FAQs for booking flights from the United States to Southeast Asia

  • How does KAYAK find such low prices on flights from the United States to Southeast Asia?

    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 the United States to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from the United States to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United States to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from the United States to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from the United States to Southeast Asia 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 the United States to Southeast Asia?

    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 the United States to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Sunday when return tickets can be as cheap as S$ 1,024. On the other hand, the most expensive day to fly is Friday, when return prices are S$ 2,666 on average.

Reviews of the top 3 airlines flying from the United States to Southeast Asia

 
Need help choosing which airline to fly with from the United States to Southeast Asia? 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.
8.2
Singapore AirlinesOverall score based on 1632 reviews
8.3Boarding
8.6Crew
8.1Entertainment
8.0Comfort
7.8Food
Airline reviews

I purchased my two tickets on February 2025. Tickets were by each other, aisle and window. However, when we were boarded the assigned seats were one by the window and the other one in the middle of the four seated row. It was a horrible experience and we had to tolerate 17 hours of flight seating by different people. If the airline changes the seat arrangement, it should have the decency to notify the passengers in advance. I have checked my return tickets to Los Angeles, and I have noticed that they are not by each other and I don’t know what to do. I hope someone contacts me and rectify this mistake.

4.0 OkayFarid, Sept 2026
Read more Singapore Airlines reviews

I purchased my two tickets on February 2025. Tickets were by each other, aisle and window. However, when we were boarded the assigned seats were one by the window and the other one in the middle of the four seated row. It was a horrible experience and we had to tolerate 17 hours of flight seating by different people. If the airline changes the seat arrangement, it should have the decency to notify the passengers in advance. I have checked my return tickets to Los Angeles, and I have noticed that they are not by each other and I don’t know what to do. I hope someone contacts me and rectify this mistake.

I had selected seats together for my family of three when I first booked my tickets in February. However, I realized only when I checked in at the airport that the seats I had selected were no longer assigned to us and we were completely scattered across three different middle seats instead of being seated together! After requesting the Singapore staff to have us seated together on a full flight, they managed to find something but it was right next to the rest rooms and the whole journey of 15+ hours was really unpleasant. They said that the seat selection isn't locked and the airline can reallocate the seats anytime. No one ever told us this and it was a terribly unpleasant surprise. Will avoid Kayak/underpricer and Singapore in future

The friendliness of the attendants, and the quality of the service.

Flight attendants were awesome! Very helpful and patients. Some food were good but maybe not serving fish that kinda make the whole aircraft smell fishy. The “fried pork” was tasty but too much skin so it doesnt taste that great.

Very concerned with guest comforts going out of their way to accommodate special dietary needs when the guests hadn’t pre-ordered.

Clean modern comfortable. Food could have been better, I only ate breakfast I wish they wouldn’t wake sleeping passengers who would rather sleep through dinner. No tea or coffee for breakfast

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

I had ordered vegetarian food. What I was presented was extremely dissatisfying and not up to the mark. I pretty much did not eat entire 19 hours. For.an airline voted as best in business, it was extremely disappointing. Seats were not comfortable to sleep. Entertainment system didn’t have much choice. WiFi didn’t work for more than half the time. Cabin crew were also difficult to understand. A bit of diversity like Emirates crew would go a long way.

A little more room from the reclining seat in the front of me.

They ran out of the second choice of food was stuck with fish

Tiny seat made for midgets. You can’t put a normal size human in such a tiny seat for 8 god damn hours! Hot plane, no air. Lost bags at Rome airport for 8 hours, lucky to have found them. Horrible flying experience, United Airlines should be embarrassed!

The issue is the flight is delayed, which causes me Missing the connecting flight by 3 mins. Remember the connecting flight is a US codeshare flight so UA should be able to inform the operating airline about the delay.

Seats are made for children. An 8 hour flight with tiny seats is more like a cattle car. Lost bags at Rome airport caused a 7 hour delay.

We sat on the tarmac in Denver for over 30 minutes because a plane was in our gate. The pilot kept saying it will just be 5 minutes or less. However, we sat for over 30 minutes. Experiences like this make customers not trust what the pilot is saying.

Waited on tarmac for approximately 15-25 minutes before taking off. When landing, the time it took to taxi to our gate was the also 15-25 minutes.

Waited on tarmac to take off for approximately 15-25 minutes. When landing, the taxi to our gate took a similar amount of time. This happened on both of my United flights.

The plane was so old. I paid a ridiculous amount to fly business and there was no internet for six hours! This can't be happening in 2026 and especially in cross country flights where there are a high volume of business travelers.

Loved the easy process to board and the experience overall was smooth

Set on the plane for two hours before pushing off the gate due to the power source issue being fixed which was known before letting people board the plane. On top of that it was very hot as AC was not working properly. Terrible experience and limited communication provided by the crew on the status of the issue. They should let people deplane while issue is addressed instead of frying them and glued to the seats.

I am United’s newest fan. The planes are clean, the staff is so friendly and snacks are more than just old pretzel crumbles. The captain came and said hello! Truly amazing experience

Entertainment, clean plane and funny pilot over the intercom was excellent… however, gate agent was rude and was probably a Spirit employee before they went bankrupt… there were 3 flight attendants - 2 of them didn’t want to be there the other one was kind and nice… I want you to recognize how you have to compete with Delta or South West airlines or even American Airlines which would choose over you at any given day from here on out. Please treat people respectfully. If you hate working in this industry - go and work somewhere else. The flight was very empty and it shouldn’t be hard to crack a smile once in a while. Very disappointing… I remember flying Jet Blue back in the day from Dulles IAD to LAX and you guys were super cool and fancy and made flying fun again - truly elevated the experience. Don’t become the next most hated airline… you can do better . I want you to succeed…

Free wifi was almost impossible to get, kept dropping the connection

Not good - we boarded and taxied for an hour before they told us there were technical issues with the plane. They told us we were going to need to deplane, parked back at the gate but then didn’t tell us we didn’t have to anymore. There was just a lot of uncertainties with poor communication.

3.5 hour delay because of “mundane” mx issue. Aircraft had to be towed 3 times.

Overall great experience, though my screen for entertainment was not working and I could see that others were.

Plane was very comfortable,ore legroom, help yourself snack are so weren't disturbed by staff passing up and down cabin, gluten free food availability and really efficient and friendly staff . Boarding and good to time. Highly recommend t

The boarding agent and checked bag agent were both rude. It only takes a second to be kind. However, the flight crew was amazing. I got a turkey sandwich and it wasn't bad---not great but not bad. The internet was my biggest problem. This was a work trip and I REALLY needed the internet to meet a deadline but it didn't work for 80% of the trip. Very disappointing.

I tried to check in beforehand from Ireland. The Jet Blue website sent me to the Aer Lingus website and vice versa. I tried to get a boarding pass at Dublin Airport as well, but they said they couldn't help me either. I had to wait until I arrived at the gate in Boston to secure a boarding pass...it was a bit nerve wracking.

Great flight. Best in years. Very clean craft. Easy boarding. Communicative pilot. Friendly flight attendants. Absolutely smooth take off, in flight and landing. Very comfortable seats. Smoothest flight I've experienced in years. THANK YOU JET BLUE!

I was asked to pony up an additional $239 (over the $735 paid originally) for a one way middle seat, which was very uncomfortable. Where did you expect me to sit?

More options for your flight to Southeast Asia

Complete your trip to Southeast Asia with a hotel stay or car hire