
Cheap Flights to Union City from HK$391
View HK$391 flight on Wed, 28 Oct 2026Opens in a new windowPopular airlines to Union City
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Cheap round-trip flights to Union City
Prices were available within the past 7 days and start at HK$391 for one-way flights and HK$771 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, 22 Oct - Wed, 28 Oct
SEA
Seattle
SFO
San Francisco
HK$771
Return
found 6 days ago

Thu, 22 Oct - Wed, 28 Oct
SEA
Seattle
SFO
San Francisco
HK$1,706
Return
found 6 days ago

Thu, 22 Oct - Wed, 28 Oct
SEA
Seattle
SFO
San Francisco
HK$1,884
Return
found 6 days ago

Thu, 8 Oct - Sat, 10 Oct
SEA
Seattle
SFO
San Francisco
HK$2,341
Return
found 3 days ago

Tue, 6 Oct - Wed, 21 Oct
HKG
Hong Kong SAR
SFO
San Francisco
HK$5,189
Return
found 5 hours ago
Find the cheapest month to fly from Columbus (CMH) to Oakland (OAK)
From HK$1,811 - HK$6,166 per traveller.
Frequently asked questions
What is the name of Union City's airport?
Many travellers like to fly into San Francisco Intl. Airport (SFO) when visiting the buzzing city of Union City.
How far is San Francisco Airport from central Union City?
The trip from San Francisco Airport to downtown Union City is fairly long. You'll need to travel 31 kilometres before you can check in to your city hotel.
What airport is best to fly into Union City?
Union City is a traveller favourite, and it has the airports to prove it. If you're heading off on a visit to this colourful city, you'll likely disembark at San Francisco Intl. Airport (SFO) (31 kilometres from downtown). If not, it'll probably be SJC (27 kilometres from downtown) or Oakland Intl. Airport (OAK) (19 kilometres from downtown).
How many airlines fly to Union City?
There are a total of 61 airlines connecting Union City with 136 airports across the world.
Which airlines fly to Union City?
Union City receives the most flights from United Airlines, Alaska Airlines and Delta with United Airlines being the preferred choice of carrier. Los Angeles is the most popular city for passengers to depart from.
How many nonstop flights are there to Union City?
Organising an unforgettable Union City adventure is a walk in the park when there are 4,722 nonstop flights each week to pick from.
Where are the most popular flights to Union City departing from?
Flights to Union City from Los Angeles, Las Vegas and Seattle airports are the most sought after.
How long is the flight to Union City Airport?
If it's Los Angeles you're departing, you'll be airborne for around 1 hour and 26 minutes before you arrive in Union City. Tarmac to tarmac from Las Vegas takes around 1 hour and 39 minutes and from Seattle, the average flight time is 2 hours and 13 minutes.
How to book the cheapest flight to Union City?
We all know those fortunate jet-setters who manage to land extremely cheap airfares whenever they fly. Eager to know how to do it for your Union City holiday? Don't leave it until the very last minute to lock in your flight. Don't stop there, though. Do some research and find out if there is more than one airport at your destination. Fares often differ depending on the airport you go for. Be sure to compare prices across airlines as well. And finally, don't forget that it's first in, best dressed. Know what a typical airfare costs and have your credit card ready to grab your ticket as soon as you spot an unbeatable bargain. The best deals never last long.
Do you have any tips for my flight to Union City?
If you're poorly prepared, air travel can be challenging. But there's no need to worry. Follow these handy hints and enjoy a pleasant start to your getaway in Union City. What to pack in your hand luggage:
- A plane trip can be a great experience if you pack the right gear. First things first, you'll need basic toiletry items, such as lip balm and hand cream, a spare set of clothes and a magazine or two. Secondly, find room in your hand luggage for your mobile phone, a charger, medications and perhaps a quality neck pillow as well. Lastly, and most importantly, remember to bring your passport, travel docs and your bank cards.
- While the list of banned items differs between airlines, the general rule to follow is avoid carrying anything flammable, sharp or explosive. This includes screwdrivers, blades, spray paint and fireworks. Sporting equipment like golf clubs, and items that could injure passengers, such as pepper spray and firearms, aren't allowed in the cabin either.
- Your goal here is to be as comfortable as you can. Opt for flat, closed-toe shoes, dress in loose, natural fibers and don't forget to bring a jacket in case you get chilly in the cabin.
- Deep vein thrombosis (DVT), a blood clot condition caused by prolonged inactivity, can be a risk on long-haul flights. Make a point of walking around the cabin or do some gentle exercises in your seat to promote better circulation.
How to get through airport security fast when flying to Union City?
As savvy travellers know, the secret is to be well prepared before you reach security. That way, you'll be hopping onto that plane to Union City before you know it. Follow these tips and get your trip off to a terrific start:
- Be sure to keep your travel documents and passport easily accessible. They'll be the first things you'll be asked to present to security.
- After that, both you and your hand luggage must be X-rayed. To make the process quick and painless, remove anything that is likely to set the alarm off. Items like your belt, coat and earphones will be required to go through the machine.
- For just a few moments, you'll have to unplug from technology. Your phone, tablet and any other electronic gadgets also need to go through the scanner.
- Travelling with your favourite perfume or cologne? No problem. As long as the volume is no greater than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, it's OK to bring with you in your carry-on luggage.
- It's also likely that you'll be asked to take your shoes off for scanning, so wearing slip-on shoes is always a wise idea.
- Knives and other sharp items are prohibited in the cabin. They'll be seized at security, so put them in your checked baggage.
Travel information
Destination airport | San Francisco Intl. |
|---|---|
Destination airport IATA code | SFO |
Destination city name | San Francisco |
Return price | HK$5,189 |
Trending flights to Union City
Prices were available within the past 7 days and start at HK$391 for one-way flights and HK$771 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, 6 Oct - Wed, 21 Oct
HKG
Hong Kong SAR
SFO
San Francisco
HK$5,189
Return
found 5 hours ago
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