$761 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 1/15. 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

Sun, Apr 19 - Fri, May 1
Fiji Airways Logo
11:25 pm - 1:45 amSFO-TBU
30h 20m1 stop
Fiji Airways Logo
5:40 am - 1:50 pmTBU-SFO
28h 10m1 stop
$1,063Fiji Airways
Find Deal
Sun, Jan 4 - Sat, Jan 24
Fiji Airways Logo
10:05 pm - 1:50 amSFO-TBU
30h 45m1 stop
Fiji Airways Logo
4:25 pm - 6:30 pmTBU-SFO
23h 05m2 stops
$1,115Fiji Airways
Find Deal
Wed, Apr 15 - Fri, May 1
Fiji Airways Logo
11:25 pm - 3:55 pmSFO-TBU
20h 30m1 stop
Fiji Airways Logo
4:55 pm - 1:50 pmTBU-SFO
16h 55m1 stop
$1,123Fiji Airways
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Tue, Dec 2 - Tue, Dec 16
Fiji Airways Logo
2:43 pm - 3:00 pmSFO-TBU
27h 17m2 stops
Fiji Airways Logo
11:20 am - 8:29 pmTBU-SFO
30h 09m2 stops
$1,158Fiji Airways
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Wed, Apr 15 - Fri, May 1
Fiji Airways Logo
6:00 pm - 3:55 pmSFO-TBU
25h 55m2 stops
Fiji Airways Logo
5:40 am - 1:50 pmTBU-SFO
28h 10m1 stop
$1,178Fiji Airways
Find Deal
Wed, Apr 15 - Sat, May 2
Fiji Airways Logo
11:25 pm - 3:55 pmSFO-TBU
20h 30m1 stop
Fiji Airways Logo
5:00 am - 5:08 pmTBU-SFO
32h 08m2 stops
$1,184Fiji Airways
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Tue, Apr 21 - Wed, Apr 29
Air New Zealand Logo
10:05 pm - 11:10 amSFO-TBU
17h 05m1 stop
Air New Zealand Logo
2:35 pm - 12:55 pmTBU-SFO
18h 20m1 stop
$1,249Air New Zealand
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Mon, Apr 20 - Wed, Apr 29
Air New Zealand Logo
10:05 pm - 11:10 amSFO-TBU
17h 05m1 stop
Air New Zealand Logo
2:35 pm - 12:55 pmTBU-SFO
18h 20m1 stop
$1,267Air New Zealand
Find Deal
Mon, Apr 20 - Mon, Apr 27
Air New Zealand Logo
10:05 pm - 11:10 amSFO-TBU
17h 05m1 stop
Air New Zealand Logo
10:45 pm - 12:55 pmTBU-SFO
34h 10m1 stop
$1,272Air New Zealand
Find Deal
Mon, Apr 20 - Sat, May 2
Multiple Airlines Logo
10:05 pm - 11:10 amSFO-TBU
17h 05m1 stop
Multiple Airlines Logo
12:20 pm - 4:58 pmTBU-SFO
24h 38m2 stops
$1,344Multiple Airlines
Find Deal
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 November, when the average cost of round-trip tickets is $1,863 and $1,836 respectively.

What’s the cheapest day of the week to fly from San Francisco to Tonga?

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

If your flying dates are flexible, you should consider flying to Tonga on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from San Francisco to Tonga. For your return ticket, we recommend flying on a Thursday and avoiding Saturdays for the best deals.

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 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$761
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 34% 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.

  • What is the cheapest time of day to fly to Tonga?

    The cheapest time of day to fly to Tonga is generally at night, when round-trip flights cost $1,421 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Tonga is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,877.

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 208 reviews
8.0Comfort
8.5Crew
7.5Entertainment
7.5Food
8.1Boarding
Airline reviews

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

6.0 GoodHon, Oct 2025NAN - SFO
Read more Fiji Airways reviews

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.

6 hour delay and they didnt try to make up any time during an over 10 hour flight

Very good; seat made ready for bed after meal, a plus since one airline covered the seat at the start.

Entertainment was not good. Seems like liquor should’ve been advertised only beer and wine was even though I saw others getting liquor didn’t realize I could. And the food to me could’ve been a little bit.

Like: Aircraft was better than others I've flown in. Crew was great, food was very good. Air New Zealand is now my favorite airline. On our long flight from AKL to YVR there was enough room for those of us in Economy to stretch a bit. My sister is disabled and they took very good care of her and me. Best entertainment offering of all the other airlines. Not so much; Flight from AKL to YRV was delayed BUT they recovered really well so no complaints here. Pretty petty point to complain about. Only negative I have. I will recommend to friends.

Nice friendly staff and crew. Love the 787 flight. Get meals and lots of drinks!

Great entertainment options on the screen. uSB A and C chargers. Free WiFi! Crew were excellent.

Check in crew member was very helpful, nice and excellent service👍

Overall the plane was good and the crew great. The big disappointment was the skycouch. Maybe it would be good if you were a parent with 2 small kids travelling but as a couple it's hopeless. It's impossible for 2 adults to lie down so one ends up sitting. We split our time with one lying and the other sitting. We both got more sleep sitting upright. We will never book one again and don't recommend it to anyone.

Lost my luggage and brought someone else luggage to my airport.

Not entirely positive. It’s frustrating that everything is done through the united app. One of our flight attendants on our trip from San Francisco to MSP continually had trouble hearing people so she flipped her hair into people’s faces

I flew United from San Francisco to Auckland. My connecting flight from Auckland to Christchurch was canceled with no explanation. I was finally told the cancellation was due to fog. Even though it was clear when we landed. I am from San Francisco, I know what fog is! And I didn't see any fog. I was told the next available flight was 7 hours later. Unacceptable, they should have had a flight ready to go as soon as it was deemed safe to take off.

Our original flight was cancelled from SFO to AKL on 6/16/25. So we had to stay overnight at a hotel after a 12-hour layover plus 3-hour delay before the cancellation. Then had to fly to LA and then to AKL the following day losing an entire day of our vacation in NZ, that we can never get back.

Two hours was not enough time to transition from the international to domestic terminal. You have to go through customs, a biological hazard check, gather your luggage, take a bus to the domestic terminal and recheck your luggage. The bus was slow and crowded and the lines to recheck your bags were very long. We missed our connecting flight. Initially, the Air New Zealand officials were not helpful at all in helping to get us on another flight. Told us we would have to buy another ticket for a flight 11 hours later. Found another agent that was more helpful. He helped arrange to get us on standby for another flight three hours later. Had to ride in jump seats next to the flight attendants, but at least we eventually got to out destination.

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

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