$416+ Cheap flights from Portland (PDX) to Belfast
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BHD
Sep 22 — Sep 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portland to Belfast with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Belfast
Cheapest
Best
One-way
Cheapest flights from Portland to BelfastExplore the most affordable flight options available from Portland to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.
Explore the most affordable flight options available from Portland to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 23, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:30 pm -
1 stop15h 55m
Thu 10/2212:45 pm -
1 stop12h 55m
Deal found 8/19![British Airways logo]()
$956
This British Airways deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:30 pm -
1 stop14h 10m
Mon 10/193:20 pm -
1 stop34h 20m
Deal found 8/19![British Airways logo]()
$979
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:30 pm -
1 stop15h 55m
Thu 10/229:35 am -
2 stops19h 09m
Deal found 8/19![American Airlines logo]()
$981
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:15 pm -
2 stops27h 05m
Tue 10/205:30 pm -
1 stop25h 40m
Deal found 8/19![Delta logo]()
$993
This Justfly.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:12 pm -
2 stops20h 28m
Fri 10/236:30 am -
1 stop19h 10m
Deal found 8/19![British Airways logo]()
$995
This KLM deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:00 am -
2 stops18h 20m
Fri 10/239:50 am -
2 stops20h 06m
Deal found 8/19![KLM logo]()
$1,002
This British Airways deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:30 pm -
1 stop14h 40m
Tue 10/2012:40 pm -
1 stop13h 00m
Deal found 8/19![British Airways logo]()
$1,029
This Expedia deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 pm -
1 stop15h 40m
Sun 11/86:30 am -
1 stop17h 20m
Deal found 8/21![British Airways logo]()
$1,047
This American Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:48 pm -
2 stops18h 37m
Sun 11/89:20 am -
1 stop14h 30m
Deal found 8/21![Multiple Airlines logo]()
$1,073
This British Airways deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:30 pm -
1 stop14h 10m
Sat 10/247:05 pm -
1 stop29h 45m
Deal found 8/19![British Airways logo]()
$1,074
This British Airways deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:30 pm -
1 stop14h 40m
Sun 10/258:30 pm -
1 stop27h 20m
Deal found 8/19![British Airways logo]()
$1,079
This Mytrip deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:30 pm -
2 stops16h 05m
Mon 10/126:50 pm -
3 stops31h 05m
Deal found 8/21![Multiple Airlines logo]()
$1,083
Best flights from Portland to BelfastDiscover carefully curated flight deals from Portland to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.
Discover carefully curated flight deals from Portland to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.
This British Airways deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/155:45 pm -
1 stop15h 40m
Fri 2/196:45 am -
1 stop17h 05m
Deal found 8/21![British Airways logo]()
$919
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:20 pm -
2 stops18h 35m
Tue 10/209:50 am -
1 stop33h 20m
Deal found 8/19![Delta logo]()
$993
This KLM deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:25 am -
2 stops21h 30m
Fri 10/239:50 am -
2 stops20h 06m
Deal found 8/19![KLM logo]()
$1,002
This Mytrip deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:30 pm -
2 stops16h 05m
Mon 10/126:50 pm -
3 stops31h 05m
Deal found 8/21![Multiple Airlines logo]()
$1,083
This British Airways deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/15:45 pm -
1 stop12h 30m
Fri 2/56:45 am -
1 stop17h 05m
Deal found 8/21![British Airways logo]()
$919
This KLM deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 am -
2 stops18h 20m
Wed 10/219:50 am -
2 stops20h 06m
Deal found 8/19![KLM logo]()
$1,002
This British Airways deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:30 pm -
1 stop15h 55m
Wed 10/2110:05 am -
1 stop15h 35m
Deal found 8/19![British Airways logo]()
$979
This Cheapflightsfares deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/295:45 pm -
1 stop12h 20m
Sun 2/76:30 am -
1 stop17h 20m
Deal found 8/20![British Airways logo]()
$994
This British Airways deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:30 pm -
1 stop15h 15m
Sun 10/258:30 pm -
1 stop27h 20m
Deal found 8/19![British Airways logo]()
$1,029
One-way flights from Portland to BelfastSearch for one-way flight options from Portland to Belfast. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.
Search for one-way flight options from Portland to Belfast. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:30 pm -
3 stops33h 00m
Deal found 8/19![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:30 pm -
3 stops41h 50m
Deal found 8/19![Multiple Airlines logo]()
$451
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:48 am -
2 stops19h 52m
Deal found 8/19![American Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:05 pm -
1 stop19h 50m
Deal found 8/19![Delta logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:30 pm -
3 stops54h 25m
Deal found 8/23![Multiple Airlines logo]()
$2,569
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:56 am -
3 stops46h 24m
Deal found 8/23![Multiple Airlines logo]()
$2,999
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:30 pm -
3 stops54h 25m
Deal found 8/23![Multiple Airlines logo]()
$3,015
This Cheapflightsfares deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:30 pm -
1 stop14h 10m
Deal found 8/23![British Airways logo]()
$4,721
This BusinessClass deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:30 pm -
1 stop14h 00m
Deal found 8/23![British Airways logo]()
$8,110
This Delta deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:05 pm -
1 stop12h 10m
Deal found 8/23![Delta logo]()
$9,450
Find flight deals from Portland to Belfast
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 23, 2026.
Round-trip from | $918 (British Airways) |
|---|---|
One-way from | $416 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 23, 2026.
Use the filters below to find and compare flights from Portland to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 2/15
5:45 pm-5:25 pm
1 stop15h 40m
Belfast City
Fri 2/19
6:45 am-3:50 pm
1 stop17h 05m
$919
Quickest round-trip
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 2/1
5:45 pm-2:15 pm
1 stop12h 30m
Belfast City
Fri 2/5
6:45 am-3:50 pm
1 stop17h 05m
$919
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 10/12
7:30 pm-7:25 pm
1 stop15h 55m
Belfast City
Wed 10/21
10:05 am-5:40 pm
1 stop15h 35m
$979
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Wed 10/14
2:20 pm-4:55 pm
2 stops18h 35m
Belfast City
Tue 10/20
9:50 am-11:10 am
1 stop33h 20m
$993
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Fri 1/29
5:45 pm-2:05 pm
1 stop12h 20m
Belfast City
Sun 2/7
6:30 am-3:50 pm
1 stop17h 20m
$994
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 10/12
11:25 am-4:55 pm
2 stops21h 30m
Belfast City
Fri 10/23
9:50 am-9:56 pm
2 stops20h 06m
$1,002
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 10/12
7:00 am-9:20 am
2 stops18h 20m
Belfast City
Wed 10/21
9:50 am-9:56 pm
2 stops20h 06m
$1,002
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 10/12
7:30 pm-6:45 pm
1 stop15h 15m
Belfast City
Sun 10/25
8:30 pm-4:50 pm
1 stop27h 20m
$1,029
PortlandBelfast
PDX Portland - BFS Belfast Intl
PDXBFS
Portland
Mon 10/5
3:30 pm-3:35 pm
2 stops16h 05m
Belfast Intl
Mon 10/12
6:50 pm-5:55 pm
3 stops31h 05m
$1,083
Cheapest one-way
PortlandBelfast
PDX Portland - BFS Belfast Intl
PDXBFS
Portland
Wed 9/23
3:30 pm-8:30 am
3 stops33h 00m
$416
Showing 1-10 of 15 resultsSorted by cheapest first
Best time to book a flight from Portland to Belfast
Have a flexible travel schedule? Discover the best time to fly to Belfast from Portland with our price prediction graph.
PDX-BF1
PDX-BHD
PDX-BFS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portland to Belfast
PDX-BF1
PDX-BHD
PDX-BFS
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Belfast
Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated August 23, 2026.
Peruse reviews from past customers who have flown with British Airways from Portland to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.4
Boarding
7.0
Entertainment
6.5
Comfort
6.8
Overall
6.7
Crew
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
IAH - LHR
Food
6.4
Boarding
7.0
Entertainment
6.5
Comfort
6.8
Overall
6.7
Crew
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
IAH - LHR
Related info for your journey
Find useful and relevant information for your journey from Portland to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Flights by cabin class
Other flight options
Other flights from Portland
Popular flights
Complete your trip
Complete your trip to Belfast by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Belfast by cabin class
Find flights from Portland to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Belfast flights
Browse other Portland and Belfast flight options. Last updated on August 23, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on August 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Portland to Belfast
Discover the top airline that operate flights from Portland to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$776 | Average$1,346 | FlexibilityNo cancel fee | On-time70% |