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Seattle (SEA) to Helena (HLN) Flights from ₹20,065

Fares on this route currently start from ₹20,065. Compare live SEA to HLN prices, non-stop and connecting flights, departure times and airline choices before booking. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
SEA → HLN Approx. 787.65 km 14 Jul 2026 Live inventory
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Showing 25 of 73 live flights
alaskaairlines
AS-2131
13:57
07/14/2026
SEA
Seattle Tacoma International Airport
2h 35m
Non-stop
16:32
07/14/2026
HLN
Helena Regional Airport
₹20,065
per person
✕ Non-refundable🔥 Last 1 seats10 fare options
Delta Air Lines
DL-1128
05:30
07/14/2026
SEA
Seattle Tacoma International Airport
6h 45m
1 Stop
⏱ SLC · 2h 15mSLC Airport
12:15
07/14/2026
HLN
Helena Regional Airport
₹20,608
per person
✕ Non-refundable7 fare options
Delta Air Lines
DL-3802
10:35
07/14/2026
SEA
Seattle Tacoma International Airport
12h 4m
2 Stops
⏱ PDX · 5h 33mPDX Airport⏱ SLC · 1h 9mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3818
09:30
07/14/2026
SEA
Seattle Tacoma International Airport
13h 9m
2 Stops
⏱ PDX · 6h 39mPDX Airport⏱ SLC · 1h 9mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-4472
22:50
07/14/2026
SEA
Seattle Tacoma International Airport
13h 25m
2 Stops
⏱ PDX · 5h 51mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3953
07:30
07/14/2026
SEA
Seattle Tacoma International Airport
15h 9m
2 Stops
⏱ PDX · 8h 34mPDX Airport⏱ SLC · 1h 9mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3913
20:59
07/14/2026
SEA
Seattle Tacoma International Airport
15h 16m
2 Stops
⏱ PDX · 7h 45mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3923
18:55
07/14/2026
SEA
Seattle Tacoma International Airport
17h 20m
2 Stops
⏱ PDX · 9h 43mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3918
16:00
07/14/2026
SEA
Seattle Tacoma International Airport
20h 15m
2 Stops
⏱ PDX · 12h 39mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3802
10:35
07/14/2026
SEA
Seattle Tacoma International Airport
25h 40m
2 Stops
⏱ PDX · 18h 4mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3818
09:30
07/14/2026
SEA
Seattle Tacoma International Airport
26h 45m
2 Stops
⏱ PDX · 19h 10mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-3953
07:30
07/14/2026
SEA
Seattle Tacoma International Airport
28h 45m
2 Stops
⏱ PDX · 21h 5mPDX Airport⏱ SLC · 2h 12mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹37,782
per person
✕ Non-refundable
Delta Air Lines
DL-2769
10:05
07/14/2026
SEA
Seattle Tacoma International Airport
12h 34m
2 Stops
⏱ LAX · 4h 10mLAX Airport⏱ SLC · 1h 17mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-1628
07:15
07/14/2026
SEA
Seattle Tacoma International Airport
15h 24m
2 Stops
⏱ LAX · 7h 0mLAX Airport⏱ SLC · 1h 17mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2854
20:25
07/14/2026
SEA
Seattle Tacoma International Airport
15h 50m
2 Stops
⏱ LAX · 6h 20mLAX Airport⏱ SLC · 2h 15mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2854
20:25
07/14/2026
SEA
Seattle Tacoma International Airport
15h 50m
2 Stops
⏱ LAX · 8h 0mLAX Airport⏱ SLC · 0h 35mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2830
15:10
07/14/2026
SEA
Seattle Tacoma International Airport
21h 5m
2 Stops
⏱ LAX · 11h 44mLAX Airport⏱ SLC · 2h 15mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2830
15:10
07/14/2026
SEA
Seattle Tacoma International Airport
21h 5m
2 Stops
⏱ LAX · 13h 24mLAX Airport⏱ SLC · 0h 35mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2914
12:35
07/14/2026
SEA
Seattle Tacoma International Airport
23h 40m
2 Stops
⏱ LAX · 14h 12mLAX Airport⏱ SLC · 2h 15mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2914
12:35
07/14/2026
SEA
Seattle Tacoma International Airport
23h 40m
2 Stops
⏱ LAX · 15h 52mLAX Airport⏱ SLC · 0h 35mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2769
10:05
07/14/2026
SEA
Seattle Tacoma International Airport
26h 10m
2 Stops
⏱ LAX · 16h 40mLAX Airport⏱ SLC · 2h 15mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-2769
10:05
07/14/2026
SEA
Seattle Tacoma International Airport
26h 10m
2 Stops
⏱ LAX · 18h 20mLAX Airport⏱ SLC · 0h 35mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹43,222
per person
✕ Non-refundable
Delta Air Lines
DL-1120
13:30
07/14/2026
SEA
Seattle Tacoma International Airport
9h 9m
1 Stop
⏱ SLC · 4h 35mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹44,051
per person
✕ Non-refundable
Delta Air Lines
DL-2858
07:15
07/14/2026
SEA
Seattle Tacoma International Airport
15h 24m
1 Stop
⏱ SLC · 10h 49mSLC Airport
22:39
07/14/2026
HLN
Helena Regional Airport
₹44,051
per person
✕ Non-refundable
Delta Air Lines
DL-1239
19:50
07/14/2026
SEA
Seattle Tacoma International Airport
16h 25m
1 Stop
⏱ SLC · 11h 50mSLC Airport
12:15
07/15/2026
+1
HLN
Helena Regional Airport
₹44,051
per person
✕ Non-refundable
😕 No flights match your filters.
Seattle (SEA)
📍 Seattle Tacoma International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 47.449001
📐 Longitude: -122.308998
Helena (HLN)
📍 Helena Regional Airport
🌍 United States
🕐 GMT -7
📐 Latitude: 46.6068000793457
📐 Longitude: -111.98300170898438

✈ Distance: Seattle,USA to Helena,USA — 787.65 km

📅 Results on this page are loaded for 14 Jul 2026. Click Load more flights to expand the full list on this page.

Seattle to Helena — what to expect when booking

The SEA–HLN route is served by multiple carriers throughout the year. Fares on this route can move quickly — a price available now may not be there 30 minutes later.

If your dates are flexible, try shifting your departure by a day or two using the date strip above. Mid-week departures often show lower base fares compared to weekend starts on many routes.

The distance between Seattle,USA and Helena,USA is approximately 787.65 km.

Before you book

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More flights from Seattle (SEA)
87 routes
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Seattle → Las Vegas
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Seattle → Lewiston
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SEA → LIH
Seattle → London
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Seattle → Miami
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Seattle → Taipei
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More flights from Helena (HLN)
5 routes
Helena → Denver
HLN → DEN
Helena → Great Falls
HLN → GTF
Helena → Minneapolis
HLN → MSP
Helena → Salt Lake City
HLN → SLC
Helena → Seattle
HLN → SEA
❓ Frequently asked questions — Seattle to Helena flights

Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.

The straight-line distance between Seattle,USA (SEA) and Helena,USA (HLN) is approximately 787.65 km. Actual flying distance may vary slightly depending on routing.

Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.

Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.