Cheap Flights to Union

View AU$69 flight on Thu, 19 Feb 2026Opens in a new window

Popular airlines to Union

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Cheap Tickets to Union

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 29 Jan - Wed, 4 Feb
SFO
San Francisco
SEA
Seattle
AU$136 Return, found 14 hours ago
AU$136
Return
found 14 hours ago
Select Alaska Airlines flight, departing Thu, 29 Jan from San Francisco to Seattle, returning Wed, 4 Feb, priced at AU$136 found 14 hours ago
Delta
Tue, 17 Mar - Sat, 21 Mar
SFO
San Francisco
SEA
Seattle
AU$145 Return, found 13 hours ago
AU$145
Return
found 13 hours ago
Select Delta flight, departing Tue, 17 Mar from San Francisco to Seattle, returning Sat, 21 Mar, priced at AU$145 found 13 hours ago
Hawaiian Airlines
Wed, 25 Feb - Thu, 5 Mar
LAX
Los Angeles
PAE
Seattle
AU$205 Return, found 8 hours ago
AU$205
Return
found 8 hours ago
Select Hawaiian Airlines flight, departing Wed, 25 Feb from Los Angeles to Seattle, returning Thu, 5 Mar, priced at AU$205 found 8 hours ago
American Airlines
Sat, 14 Feb - Sat, 21 Feb
LAX
Los Angeles
SEA
Seattle
AU$206 Return, found 4 days ago
AU$206
Return
found 4 days ago
Select American Airlines flight, departing Sat, 14 Feb from Los Angeles to Seattle, returning Sat, 21 Feb, priced at AU$206 found 4 days ago
United
Thu, 29 Jan - Wed, 4 Feb
SFO
San Francisco
SEA
Seattle
AU$240 Return, found 14 hours ago
AU$240
Return
found 14 hours ago
Select United flight, departing Thu, 29 Jan from San Francisco to Seattle, returning Wed, 4 Feb, priced at AU$240 found 14 hours ago

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

October is typically the cheapest month to fly

From AU$209 - AU$361 per traveller.

Union Flights

Have the time of your life in Union

Flying to Union is now easier than ever when you use Expedia to book your trip. We’ve got an extensive catalogue of Union flight deals, giving you the greatest number of options to choose from. Whether you prefer to fly on weekdays or weekends, in the morning or at night, a quick search on Expedia.com.au will help you find cheap tickets to Union in seconds. We even make it simple for you to stick with a certain airline if you’re trying to rack up frequent flyer points.

Tips for flying and packing light

If it’s been a while since you’ve travelled, you might be due for a refresher when it comes to flying. That’s where our helpful blog, Out There Starts Here, comes in. Wondering whether to pack for fine dining or more casual eats? Or whether you really need to bring a jacket? Written by seasoned travel experts, the articles on our blog provide you with the latest details about certain destinations, so you know just what to expect. Check out some of our recent articles for the smartest ways to see the sights.

Fly for less when you bundle airfare and accommodation

Our already low airfares are even more affordable when you bundle your flights with a stay at one of the hotels in Union. By booking all of your travel plans with us, you’ll save time and money, and enjoy the convenience of having all of your arrangements in one place.

Get the power of planning in the palm of your hand

Booking your trip to Union, Washington has never been easier than when you use our mobile app to plan your dream getaway. The Expedia App is available on both Android and iOS, allowing you to reserve flights and hotels at any time of day, no matter what kind of phone you use. You’ll also get exclusive offers, receive flight updates, and can earn extra points. Wherever you are, the Expedia App helps you get where you want to be.

Join the Expedia Rewards Program

If you enjoy the finer things in life, sign up for our rewards program to receive exclusive benefits when you book with us. Expedia Rewards opens the door to member-only deals, +VIP Access hotel benefits, and earning Expedia Rewards points, that you can redeem your way. You’ll also get access to Unreal Deals that could save you the price of a plane ticket to Union when bundled with your accommodation.

What are you waiting for?

Expedia.com.au helps you find cheap flights to Union AU$136. So why wait another second to begin planning your trip? Start your search right now, and you could be boarding the next Union-bound flight. Bon voyage!

Frequently asked questions

What is the name of Union's airport?
Seattle - Tacoma Intl. Airport (SEA) is the only airport serving Union.
What airport is best to fly into Union?
Step through the doors of SEA and your Union adventure will have begun! The city's main airport, it's located 64 kilometres from the downtown streets.
How many airlines fly to Union?
There are 38 airlines that fly into Union from 124 worldwide airports.
Which airlines fly to Union?
Most often, travellers fly with Alaska Airlines, Delta and American Airlines when going to Union. The biggest proportion of these flights arrive from Los Angeles, with Alaska Airlines operating this route the most frequently.
How many nonstop flights are there to Union?
Flying to somewhere new is much more straightforward when there aren't any stopovers involved. If you're heading to Union, the awesome news is that there are approximately 3,404 direct flights each week.
Where are the most popular flights to Union departing from?
The most popular flights to Union take off from Los Angeles, Phoenix and Portland airports.
How long is the flight to Union Airport?
If it's Los Angeles you're leaving behind, you'll be in the air for around 2 hours and 57 minutes before you touchdown in Union. Airport to airport from Phoenix generally takes 3 hours and 17 minutes and from Portland, the flight time is 1 hour and 5 minutes.
How to book the cheapest flight to Union?
We all know those fortunate jet-setters who somehow land impossibly cheap airfares whenever they fly. Want to know how to do it for your Union holiday? Don't wait until the last possible moment to secure your flight. Also, shop around and compare your options. If your destination has multiple airports, you may be able to pick up an excellent price by flying into one a little further out. Finally, be prepared to book quickly if you find a real bargain. It might not stick around for too long! With a bit of know-how and some luck, the ideal airfare will be yours.
Do you have any tips for my flight to Union?
Wherever you're jetting in from, flying can be a pleasurable experience if you prepare well enough. Check out these handy hints that will get your Union holiday started on the right note. What to pack in your hand luggage:

  • The trick to having a worry-free travel experience is to pack in advance. Start with the essentials: passport, travel documents, bank cards and important medications. Next, take on board items that'll help keep you entertained, like some electronic gadgets or a magazine. It's also smart to pack your chargers, a comfy neck pillow and a pair of earplugs. Finally, be sure to chuck in toiletry items like a toothbrush, facial wipes and a spare set of clothes.

Do not pack the following items in your hand luggage:

  • While the list of restricted items differs between airlines, the general rule of thumb is avoid carrying anything sharp, flammable or explosive. This includes screwdrivers, drills, fuels and bleaching agents. Sports equipment like baseball bats, and objects that could harm other people, such as pepper spray and firearms, are also banned from the cabin.

What to wear on a flight:

  • Your goal here is to feel as comfortable as possible. Opt for shoes that are easy to pull on and off, dress in loose, natural-fibre clothing and remember to bring a sweater in case it gets chilly in the cabin.
  • You're probably aware of deep vein thrombosis (DVT), a blood clotting condition caused by prolonged periods of inactivity. To lessen your risk on board, stay hydrated, consider wearing compression socks and keep your feet and legs moving.

How to get through airport security fast when flying to Union?
As savvy travellers know, the secret is to be prepared before you reach the security gate. That way, you'll be stepping onto that plane to Union in next to no time. Follow these tips and get your holiday off to a great start:

  • Have your travel documents and ID within close reach. They're the first items you'll be asked to present to security.
  • Next up is the X-ray machine. Remove anything on you that is likely to beep. This includes items like headphones or earphones, as well as your coat or jacket. They'll need to be placed on the conveyor belt for screening.
  • All electronic gadgets, including your tablet and phone, must also be separately scanned.
  • Can't travel without your favourite perfume or cologne? Not a problem. As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, you can keep it with you in your carry-on luggage.
  • Slip-on shoes are a practical footwear choice as you're less likely to have to remove them when passing through security. Big boots and heavier-style shoes are usually subjected to extra screening.
  • Sharp or pointed objects (like knives and scissors) are prohibited in the cabin. They'll be confiscated at security, so pack them in your checked bags.

Flights to Union information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
AU$135

Trending flights to Union

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 3 Mar - Tue, 10 Mar
BNE
Brisbane
SEA
Seattle
AU$1,008 Return, found 4 hours ago
AU$1,008
Return
found 4 hours ago
Select Air Canada flight, departing Tue, 3 Mar from Brisbane to Seattle, returning Tue, 10 Mar, priced at AU$1,008 found 4 hours ago
*Available to Expedia members.