Cheap Flights to Union: Union Flight Deals

View €84 flight on Mon, 17 Nov 2025Opens in a new window

Popular airlines to Union

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Cheap round-trip flights to Union

Prices were available within the past 7 days and start at €84 for one-way flights and €151 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Thu, 16 Oct - Wed, 22 Oct
JFK
New York
SEA
Seattle
€151 Return, found 13 hours ago
€151
Return
found 13 hours ago
Select JetBlue Airways flight, departing Thu, 16 Oct from New York to Seattle, returning Wed, 22 Oct, priced at €151 found 13 hours ago
American Airlines
Thu, 16 Oct - Wed, 22 Oct
LGA
New York
SEA
Seattle
€168 Return, found 13 hours ago
€168
Return
found 13 hours ago
Select American Airlines flight, departing Thu, 16 Oct from New York to Seattle, returning Wed, 22 Oct, priced at €168 found 13 hours ago
Delta
Wed, 5 Nov - Sat, 15 Nov
EWR
New York
SEA
Seattle
€202 Return, found 6 days ago
€202
Return
found 6 days ago
Select Delta flight, departing Wed, 5 Nov from New York to Seattle, returning Sat, 15 Nov, priced at €202 found 6 days ago
United
Thu, 23 Oct - Mon, 27 Oct
EWR
New York
SEA
Seattle
€237 Return, found 2 days ago
€237
Return
found 2 days ago
Select United flight, departing Thu, 23 Oct from New York to Seattle, returning Mon, 27 Oct, priced at €237 found 2 days ago
Scandinavian Airlines
Thu, 4 Jun - Fri, 12 Jun
DUB
Dublin
SEA
Seattle
€418 Return, found 15 hours ago
€418
Return
found 15 hours ago
Select Scandinavian Airlines flight, departing Thu, 4 Jun from Dublin to Seattle, returning Fri, 12 Jun, priced at €418 found 15 hours ago

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

September is typically the cheapest month to fly

From €116 - €210 per traveller.

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.

Book with confidence

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Union. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Union. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Union, or are just on the lookout for the best flights to Union, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Union to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
€92

Trending flights to Union

Prices were available within the past 7 days and start at €84 for one-way flights and €151 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Thu, 4 Jun - Fri, 12 Jun
DUB
Dublin
SEA
Seattle
€418 Return, found 15 hours ago
€418
Return
found 15 hours ago
Select Scandinavian Airlines flight, departing Thu, 4 Jun from Dublin to Seattle, returning Fri, 12 Jun, priced at €418 found 15 hours ago

Explore a world of travel with Expedia

Explore a world of travel with Expedia

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