$919+ Cheap flights from Portland (PDX) to Belfast
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BHD
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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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
Last-minute
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 September 5, 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 September 5, 2026.
This Justfly.com deal was found by Cheapflights users on 9/1. 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.
Mon 11/95:45 pm -
1 stop15h 40m
Tue 11/176:15 pm -
1 stop29h 35m
Deal found 9/1![British Airways logo]()
$981
This KLM deal was found by Cheapflights users on 9/1. 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.
Wed 10/282:40 pm -
1 stop19h 05m
Mon 11/25:15 pm -
2 stops35h 35m
Deal found 9/1![KLM logo]()
$998
This Cheapflightsfares deal was found by Cheapflights users on 9/1. 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.
Wed 10/286:45 pm -
1 stop15h 10m
Mon 11/29:25 am -
1 stop14h 25m
Deal found 9/1![British Airways logo]()
$1,004
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Thu 10/13:30 pm -
2 stops22h 15m
Thu 10/83:50 pm -
3 stops34h 05m
Deal found 9/1![Multiple Airlines logo]()
$1,163
This Mytrip deal was found by Cheapflights users on 9/2. 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 11/92:45 pm -
3 stops20h 25m
Tue 11/178:55 pm -
2 stops22h 45m
Deal found 9/2![Multiple Airlines logo]()
$1,178
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/2810:00 am -
3 stops27h 20m
Mon 11/26:20 am -
2 stops18h 40m
Deal found 9/1![Multiple Airlines logo]()
$1,193
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/2810:00 am -
3 stops28h 05m
Mon 11/28:00 am -
2 stops17h 00m
Deal found 9/1![Multiple Airlines logo]()
$1,197
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 September 5, 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 September 5, 2026.
This British Airways deal was found by Cheapflights users on 9/2. 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 9/2![British Airways logo]()
$919
This KLM deal was found by Cheapflights users on 9/1. 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.
Wed 10/2812:29 pm -
2 stops21h 16m
Mon 11/25:15 pm -
2 stops34h 47m
Deal found 9/1![KLM logo]()
$1,002
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Thu 10/13:30 pm -
2 stops22h 15m
Thu 10/83:50 pm -
3 stops34h 05m
Deal found 9/1![Multiple Airlines logo]()
$1,163
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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 9/4![British Airways logo]()
$993
This Cheapflightsfares deal was found by Cheapflights users on 9/1. 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.
Wed 10/286:45 pm -
1 stop15h 10m
Mon 11/29:25 am -
1 stop14h 25m
Deal found 9/1![British Airways logo]()
$1,004
This Mytrip deal was found by Cheapflights users on 9/2. 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 11/92:45 pm -
3 stops20h 25m
Tue 11/178:55 pm -
2 stops22h 45m
Deal found 9/2![Multiple Airlines logo]()
$1,178
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/2810:00 am -
3 stops27h 20m
Mon 11/26:20 am -
2 stops18h 40m
Deal found 9/1![Multiple Airlines logo]()
$1,193
This British Airways deal was found by Cheapflights users on 9/4. 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 stop14h 20m
Wed 2/175:35 pm -
2 stops35h 38m
Deal found 9/4![British Airways logo]()
$1,148
Last-minute flights from Portland to BelfastDiscover last-minute flight deals from Portland to Belfast. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Belfast. Data last updated September 5, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Thu 10/13:30 pm -
2 stops22h 15m
Thu 10/83:50 pm -
3 stops34h 05m
Deal found 9/1![Multiple Airlines logo]()
$1,163
This KLM deal was found by Cheapflights users on 9/1. 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.
Wed 10/282:40 pm -
1 stop19h 05m
Mon 11/25:15 pm -
2 stops35h 35m
Deal found 9/1![KLM logo]()
$998
This Cheapflightsfares deal was found by Cheapflights users on 9/1. 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.
Wed 10/286:45 pm -
1 stop15h 10m
Mon 11/29:25 am -
1 stop14h 25m
Deal found 9/1![British Airways logo]()
$1,004
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/2810:00 am -
3 stops27h 20m
Mon 11/26:20 am -
2 stops18h 40m
Deal found 9/1![Multiple Airlines logo]()
$1,193
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/2810:00 am -
3 stops28h 05m
Mon 11/28:00 am -
2 stops17h 00m
Deal found 9/1![Multiple Airlines logo]()
$1,197
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 September 5, 2026.
Round-trip from | $918 (British Airways) |
|---|
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 September 5, 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
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
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
$993
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Wed 10/28
12:29 pm-4:45 pm
2 stops21h 16m
Belfast City
Mon 11/2
5:15 pm-8:02 pm
2 stops34h 47m
$1,002
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Wed 10/28
6:45 pm-4:55 pm
1 stop15h 10m
Belfast City
Mon 11/2
9:25 am-3:50 pm
1 stop14h 25m
$1,004
PortlandBelfast
PDX Portland - BHD Belfast City
PDXBHD
Portland
Mon 2/15
5:45 pm-4:05 pm
1 stop14h 20m
Belfast City
Wed 2/17
5:35 pm-9:13 pm
2 stops35h 38m
$1,148
PortlandBelfast
PDX Portland - BFS Belfast Intl
PDXBFS
Portland
Thu 10/1
3:30 pm-9:45 pm
2 stops22h 15m
Belfast Intl
Thu 10/8
3:50 pm-5:55 pm
3 stops34h 05m
$1,163
PortlandBelfast
PDX Portland - BFS Belfast Intl
PDXBFS
Portland
Mon 11/9
2:45 pm-7:10 pm
3 stops20h 25m
Belfast Intl
Tue 11/17
8:55 pm-11:40 am
2 stops22h 45m
$1,178
PortlandBelfast
PDX Portland - BFS Belfast Intl
PDXBFS
Portland
Wed 10/28
10:00 am-8:20 pm
3 stops27h 20m
Belfast Intl
Mon 11/2
6:20 am-5:00 pm
2 stops18h 40m
$1,193
Sorted 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 September 5, 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.
Entertainment
6.5
Overall
6.7
Boarding
7.0
Comfort
6.8
Crew
7.7
Food
6.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
IAH - LHR
Entertainment
6.5
Overall
6.7
Boarding
7.0
Comfort
6.8
Crew
7.7
Food
6.4
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.
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Search flights from Portland to Belfast by cabin class
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Portland and Belfast flights
Browse other Portland and Belfast flight options. Last updated on September 5, 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 September 5, 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 September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$776 | Average$1,316 | FlexibilityNo cancel fee | On-time70% |