Cheap Flights from Hanoi (HAN) to San Diego (SAN)

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      Travellers and cabin class, 1 Adult, Economy

      Compare Hanoi to San Diego International flight deals

      Find the cheapest month or even day of the year to fly to San Diego International

      Book the best San Diego International fare with no extra fees

      Flight deals from Hanoi to San Diego International

      Looking for a cheap last-minute deal or the best return flight from Hanoi Airport to San Diego International Airport? If you want to travel next month, return fares start from $1,414. Find the lowest prices on one-way and return tickets right here.

      Find the cheapest month to fly from Hanoi to San Diego International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Hanoi to San Diego International flights are currently cheapest in October.

      Hanoi to San Diego International: Alternative routes

      Compare routes from Hanoi to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

      Hanoi to San Diego: Flight information

      The things to know before you go.
      Cheapest flight found$1,326
      Cheapest month to flyOctober

      Finding cheap flights from Hanoi to San Diego International: Frequently asked questions

      The best price we found for a return flight from Hanoi to San Diego International is $1,326. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Hanoi to San Diego International. But we found flights with one or more stops from $1,326.
      As of August 2026, there are no flights flying from Hanoi to San Diego International.
      The cheapest month to fly from Hanoi to San Diego International is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Hanoi Airport to San Diego International Airport on Monday, 12 October 2026.
      No airlines currently offer direct flights between Hanoi Airport and San Diego International Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, China Southern offers the cheapest flight tickets to San Diego International.

      Travelling from Hanoi Airport (HAN) to San Diego International Airport (SAN): what you need to know

      • San Diego is 15 hours behind Hanoi and follows the UTC-8 timezone.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to catch your HAN to SAN flight.

      • You'll likely experience longer lines in popular months such as June. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a wise move.

      • If you'd like to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Hanoi Airport to San Diego International Airport. These are the most popular stopovers between HAN and SAN:

        • London Heathrow Airport

        • Munich Airport

        • Tokyo Narita Airport

      How to find the cheapest flights from Hanoi Airport (HAN) to San Diego International Airport (SAN)

      • The cheapest price we've seen for a one-way Hanoi Airport to San Diego International Airport flight is $654. A round-trip plane ticket right now is $1,326. Depending on the availability when you book, these fares could change.

      • Don't leave everything to the last minute. You're more likely to find cheap tickets from HAN to SAN if you book early. Airlines often have some fantastic early bird rates.

      • If you're willing to be flexible with your trip dates, use the 'Whole month' tool. It'll give you the cheapest price in every month when looking for your flight from Hanoi Airport to San Diego International Airport.

      • Finding cheap flights from HAN to SAN is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when a new discounted fare appears.

      • Secure the perfect flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Hanoi Airport to San Diego International Airport, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and number of stops.

      Handy information about Hanoi Airport (HAN)

      • When it comes to the on-time performance of Hanoi Airport, data shows 72% of flights complete their journey on time.

      • To reach Hanoi Airport from central Hanoi, it takes about 40 minutes if you're travelling by car. This depends on traffic, however. It's approximately 31 kilometres from the airport to the city centre.

      • Expect a journey time of around 1 hour on public transport.

      • Searching for a handy hotel near HAN? If you're catching an early flight from Hanoi Airport to San Diego International Airport, these accommodation options will have you moments from your departure gate:

      Arriving at San Diego International Airport (SAN)

      When to fly to San Diego International Airport (SAN)

      • August is the most popular month for flights from Hanoi Airport to San Diego International Airport. To steer clear of the crowds, visit San Diego in March.

      • The warmest month in San Diego is August, with temperatures ranging between 16ºC (61ºF) and 27ºC (81ºF). Lock in your flights from Hanoi Airport to San Diego International Airport in this month if you like this kind of weather.

      • Search for cheap tickets from HAN to SAN in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC (46ºF) and 22ºC (72ºF) on average.

      Explore more of the United States

      • San Diego has loads to offer, but there are so many other corners of the United States just waiting to be explored. Around 177 kilometres north-west of San Diego, a visit to Los Angeles will keep your itinerary busy. Start with attractions like Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

      • Around 483 kilometres east of San Diego, Phoenix is another essential stop in the United States. Experience the best of this destination with a visit to Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.