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Flights from Seattle to Castries Starting at NZD 435

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • SEA15:20
        17h 23m
        1 stop
        UVF12:43
        Sat, Jan 25|Seattle - Castries|Jetblue Airways
        NZD 435NZD 516
        16% OFF
        16% OFF
        NZD 516NZD 435

        Choose Jetblue Airways flights from Seattle to Castries. The one-way connecting flight with Jetblue Airways departs from Seattle-Tacoma International Airport on Sat, Jan 25, arriving at Hewanorra Airport. One-way Prices start from NZD 435 including taxes and charges.

      • SEA15:20
        17h 23m
        1 stop
        UVF12:43
        Sat, Feb 1|Seattle - Castries|Jetblue Airways
        NZD 441NZD 516
        14% OFF
        14% OFF
        NZD 516NZD 441

        Choose Jetblue Airways flights from Seattle to Castries. The one-way connecting flight with Jetblue Airways departs from Seattle-Tacoma International Airport on Sat, Feb 1, arriving at Hewanorra Airport. One-way Prices start from NZD 441 including taxes and charges.

      • SEA06:15
        30h 4m
        1 stop
        UVF16:19
        Thu, Feb 27|Seattle - Castries|Alaska Airlines
        NZD 446NZD 516
        13% OFF
        13% OFF
        NZD 516NZD 446

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Thu, Feb 27, arriving at Hewanorra Airport. One-way Prices start from NZD 446 including taxes and charges.

      • SEA08:26
        24h 17m
        1 stop
        UVF12:43
        Sat, Jan 25|Seattle - Castries|Alaska Airlines
        NZD 446
        NZD 446

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Jan 25, arriving at Hewanorra Airport. One-way Prices start from NZD 446 including taxes and charges.

      • SEA08:26
        24h 17m
        1 stop
        UVF12:43
        Sat, Feb 1|Seattle - Castries|Alaska Airlines
        NZD 451
        NZD 451

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Feb 1, arriving at Hewanorra Airport. One-way Prices start from NZD 451 including taxes and charges.

      • SEA07:30
        25h 13m
        1 stop
        UVF12:43
        Sat, Feb 1|Seattle - Castries|Delta Air Lines
        NZD 454
        NZD 454

        Choose Delta Air Lines flights from Seattle to Castries. The one-way connecting flight with Delta Air Lines departs from Seattle-Tacoma International Airport on Sat, Feb 1, arriving at Hewanorra Airport. One-way Prices start from NZD 454 including taxes and charges.

      • SEA06:15
        29h 40m
        1 stop
        UVF15:55
        Thu, Feb 20|Seattle - Castries|Alaska Airlines
        NZD 461
        NZD 461

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Thu, Feb 20, arriving at Hewanorra Airport. One-way Prices start from NZD 461 including taxes and charges.

      • SEA06:15
        29h 59m
        1 stop
        UVF16:14
        Fri, Feb 21|Seattle - Castries|Alaska Airlines
        NZD 461
        NZD 461

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Fri, Feb 21, arriving at Hewanorra Airport. One-way Prices start from NZD 461 including taxes and charges.

      • SEA06:15
        29h 40m
        1 stop
        UVF15:55
        Sun, Feb 23|Seattle - Castries|Alaska Airlines
        NZD 462
        NZD 462

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Feb 23, arriving at Hewanorra Airport. One-way Prices start from NZD 462 including taxes and charges.

      • SEA06:05
        30h 20m
        1 stop
        UVF16:25
        Sun, Feb 2|Seattle - Castries|Alaska Airlines
        NZD 467
        NZD 467

        Choose Alaska Airlines flights from Seattle to Castries. The one-way connecting flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Feb 2, arriving at Hewanorra Airport. One-way Prices start from NZD 467 including taxes and charges.

      • SEA01:00 pm
        3h 5m
        Nonstop
        SLU02:00 pm
        Fri, Jan 24|Seattle - Castries|Jetblue Airways
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Seattle to Castries

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Alternative Routes from Seattle to Castries

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Castries.

  • Cheapest
    Jetblue Airways
    SEA
    15:20
    17h 23m
    1 transfer
    UVF
    12:43
    Seattle-Tacoma International Airport - Hewanorra Airport
    Sat, Jan 25Jetblue Airways
    NZD 435
  • Alaska Airlines
    SEA
    06:15
    29h 35m
    2 transfer
    SLU
    15:50
    Seattle-Tacoma International Airport - George F. L. Charles Airport
    Sun, Mar 2Alaska Airlines
    NZD 689
  • Alaska Airlines
    SEA
    06:15
    29h 35m
    2 transfer
    SLU
    15:50
    Seattle-Tacoma International Airport - George F. L. Charles Airport
    Sun, Mar 2Alaska Airlines
    NZD 689
    Find More Flights

FAQ

  • When are flight tickets from Seattle (SEA) to Castries (SLU) the cheapest?

    Airlines adjust prices for flights from Seattle to Castries based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Seattle (SEA) to Castries (SLU) cost?

    According to Trip.com's data, the lowest price is around NZD 1,233.

  • What is the transportation method from the main airport to downtown in Castries?

    • The distance from Hewanorra Airport to downtown is about 30 km. It takes about 50 minutes by taxi.
    • The distance from George F. L. Charles Airport to downtown is about 1 km. It takes about 20 minutes by taxi.

How to find a cheap flight from Seattle to Castries

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Castries. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Seattle to Castries

Cheapest nonstop flight priceNZD 435
Off-season for travelDecember
Peak season for travelMarch
Flight distance6,719.39 km
Popular airlineAlaska Airlines

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