$524 Find Cheap Flights from San Francisco to Tonga

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Tonga departing on 2/26. 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

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Flight Deals

Book Cheap San Francisco to Tonga Plane Tickets

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

Wed, Feb 25 - Fri, Mar 6
Fiji Airways Logo
10:05 pm - 3:00 pm
SFO
-
TBU
19h 55m
1 stop
Fiji Airways Logo
5:40 am - 12:25 pm
TBU
-
SFO
27h 45m
1 stop
$944Fiji Airways
Wed, Feb 25 - Fri, Mar 6
Fiji Airways Logo
10:05 pm - 3:00 pm
SFO
-
TBU
19h 55m
1 stop
Fiji Airways Logo
4:00 pm - 12:25 pm
TBU
-
SFO
17h 25m
1 stop
$956Fiji Airways
Sun, Mar 1 - Fri, Mar 6
Fiji Airways Logo
10:05 pm - 10:35 am
SFO
-
TBU
15h 30m
1 stop
Fiji Airways Logo
4:00 pm - 12:25 pm
TBU
-
SFO
17h 25m
1 stop
$987Fiji Airways
Sun, Mar 1 - Wed, Mar 4
Fiji Airways Logo
10:05 pm - 1:50 am
SFO
-
TBU
30h 45m
1 stop
Fiji Airways Logo
5:40 am - 12:25 pm
TBU
-
SFO
27h 45m
1 stop
$1,007Fiji Airways
Wed, May 20 - Fri, May 29
Fiji Airways Logo
10:35 pm - 3:55 pm
SFO
-
TBU
21h 20m
1 stop
Fiji Airways Logo
4:55 pm - 1:50 pm
TBU
-
SFO
16h 55m
1 stop
$1,008Fiji Airways
Wed, Feb 25 - Fri, Mar 6
Multiple Airlines Logo
5:20 pm - 3:00 pm
SFO
-
TBU
24h 40m
2 stops
Multiple Airlines Logo
5:40 am - 12:25 pm
TBU
-
SFO
27h 45m
1 stop
$1,009Multiple Airlines
Wed, May 20 - Wed, Jun 3
Fiji Airways Logo
10:35 pm - 3:55 pm
SFO
-
TBU
21h 20m
1 stop
Fiji Airways Logo
11:20 am - 1:50 pm
TBU
-
SFO
22h 30m
1 stop
$1,041Fiji Airways
Fri, Mar 13 - Fri, Mar 20
Multiple Airlines Logo
10:26 pm - 1:50 am
SFO
-
TBU
55h 24m
2 stops
Multiple Airlines Logo
5:40 am - 1:25 pm
TBU
-
SFO
27h 45m
1 stop
$1,044Multiple Airlines
Wed, Feb 25 - Thu, Mar 5
Fiji Airways Logo
10:05 pm - 3:00 pm
SFO
-
TBU
19h 55m
1 stop
Fiji Airways Logo
5:40 am - 6:30 pm
TBU
-
SFO
33h 50m
2 stops
$1,047Fiji Airways
Sun, May 24 - Fri, May 29
Fiji Airways Logo
10:35 pm - 1:05 am
SFO
-
TBU
30h 30m
1 stop
Fiji Airways Logo
5:40 am - 1:50 pm
TBU
-
SFO
28h 10m
1 stop
$1,066Fiji Airways
Booking Insights

KAYAK's insights & trends for San Francisco to Tonga flights

Get data-powered insights and trends into flights from San Francisco to Tonga to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Tonga?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Tonga, 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 San Francisco to Tonga is May, when tickets cost $1,064 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,797 and $1,532 respectively.

How far in advance should I book a flight from San Francisco to Tonga?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Tonga, 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 San Francisco to Tonga, you should book around 2 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$524
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from San Francisco to Nuku‘alofa

FAQs - booking Tonga flights

  • How does KAYAK find such low prices on flights from San Francisco to Tonga?

    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 San Francisco to Tonga.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Tonga 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 San Francisco to Tonga?

    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 San Francisco to Tonga 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 San Francisco to Tonga?

    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 San Francisco to Tonga 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 San Francisco to Tonga

 
Need help choosing which airline to fly with from San Francisco to Tonga? 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
Fiji AirwaysOverall score based on 223 reviews
7.5Entertainment
8.5Crew
8.0Comfort
8.1Boarding
7.4Food
Airline reviews

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

8.0 ExcellentAnonymous, Jan 2026
DFW - NAN
Read more Fiji Airways reviews

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

We have had an absolutely horrific experience so far getting home from Australia on a $18,000 + flight we booked with you. The flight did not deplane in Dallas because there was no available gate or staircase. We sat in the plane for 3 hours waiting to deplane. As a result we missed our connecting flight to New York. American Airlines put us up in a hotel several miles away. We waited 45 minutes for a shuttle and The shuttle driver was horribly rude and unhelpful. They offered us $70 vouchers for food but actually there was no food left when we arrived minus some chicken nuggets and corn dogs. It was awful. Horrible way to end a vacation. There has to be accountability here.

A bit cramped in economy and the people in front wouldn’t put their seats up during meal service, crew did not help with that and I felt they could have done more about it.

The airline is ok, but it needs to improve it schedules.

Again, Fijian hospitality was genuine, very comfortable, only improvement would be the entertainment. Why Do they only have 5 episodes of TV shows and from like season three...

Fiji Airways was amazing, will definately be lfying them again. The "Fijian hospitality" is not a catch phrase, it is genuine. the only things that could be improved is the entertainment. Not a great choice of movies, and the TV shows only have about 5 or so episodes, and often of a random season.

They will look to squeeze every penny they can out of you!! Pick your seat$$...bring luggage$$$$... if they could charge you for the air on the plane they would!!

.very good and as I needed wheelchair assistance all staff excellent.. only suggestion is get rid of those plastic chairs hard to ride in and staff have trouble compared to others. Everything else very good experience. Will use Fiji Air again.

In-flight entertainment options could use a refresh, Consider a tie-up with Spotify for more current music and with IMDB or other service for newer selections/movie ratings.

See previous comments. Didn’t take this flight because my other flight was so delayed. Ending up on two other flights as a result and was more than a day late.

Very quick flight so no time for refreshments. We took off. Then landed. The end. Seats were too tight. Very cramped Grateful for the short flight cos moving around wasn’t possible

Please add more Bollywood movies and recent movies to the entertainment.

I was not even on that flight and did not even book a ticket. Kayak did a phenomenal job

Entertainment screen froze and had to be reset. Noticed it happened to other passengers as well.

My flying experience was not great. The temperature was ridiculously low. I had a sweater and a big jacket and even then. Since my ticket was an economy ticket, I suppose I didn’t deserve a blanket as they were only available for business. The result, o got a cold I have not been able to shake off in 6 days which has absolutely ruined my stay in Japan as I hasn’t had the chance to leave my hotel room. Everything else that was good, had overshadowed by this. BE A LITTLE MORE HUMAN

The food was not as good as Air New Zealand. The veg pasta was pass-able but the veg cibotta sandwich was dry, hard and not up to par. The coach staff were attentive and accommodating.

Air conditioning was turned to the wrong setting. Way too hot. The entertainment system kept resetting and didn’t work half the flight. Said something to the crew. They didn’t do anything to help. Plane had a mechanical problem that resulted in 2.5 hour delay. Boarded the plane, had to disembark and get back on.

Flight was delayed by 2 hours. Got lucky that i had a long connection, else would have certainly missed my connecting flight. Food is just okay, specially the breakfast is worse . Asked for water 30 mins before landing, the response is that we are landing so everything is packed . I guess traveling in economy that’s what we get. Probably business class passengers would get a different answer. Only good thing is that wifi service is available from auckland to lax for most part Next time will try united or American and then compare.

Good and appreciate the effort Air Zealand puts into using more environmentally friendly food containers and utensils. yay! One of the better airlines for this for sure. Still some bad stuff, but at least Air NZ is trying. :) Also really enjoyed the bluetooth option for personal headsets. :)

I was trying to get confirmation on if my luggage was going to be moved to the earlier flight (I requested standby to get home earlier) and was unable to get help from those working at the counter. The request to be moved to an earlier flight was handled smoothly through the app and appreciate the ease of the request.

Everything you need to know for your flight from San Francisco to Tonga

Information on your arrival and departure airports