Costco Union Gap Gas Prices – Longfibre Rd
Today at the pump
Regular4.779▼ −$0.020
Premium5.399▲ +$0.040
USD per gallon · Last updated September 17, 2026 · This station does not sell diesel
2310 Longfibre Rd, Union Gap, WA 98903-1513 · Open in Maps ↗
30-day range
where today sits- Regular$4.779 today · avg $4.663$4.359 low$4.859 high
- Premium$5.399 today · avg $5.243$4.959 low$5.399 high
Price history at Union Gap
Last 30 days · USD per gallonRegularPremium
View data as table
| Date | Regular | Premium |
|---|---|---|
| Aug 20 | $4.359 | $5.059 |
| Aug 21 | $4.359 | $5.059 |
| Aug 22 | $4.459 | $5.259 |
| Aug 23 | $4.499 | $5.259 |
| Aug 24 | $4.499 | $5.259 |
| Aug 25 | $4.499 | $5.159 |
| Aug 26 | $4.499 | $5.159 |
| Aug 27 | $4.499 | $5.059 |
| Aug 28 | $4.499 | $4.989 |
| Aug 29 | $4.559 | $4.989 |
| Aug 30 | $4.559 | $4.959 |
| Aug 31 | $4.599 | $4.999 |
| Sep 1 | $4.699 | $5.099 |
| Sep 2 | $4.699 | $5.259 |
| Sep 3 | $4.699 | $5.259 |
| Sep 4 | $4.799 | $5.359 |
| Sep 5 | $4.799 | $5.399 |
| Sep 6 | $4.759 | $5.359 |
| Sep 7 | $4.799 | $5.359 |
| Sep 8 | $4.799 | $5.359 |
| Sep 9 | $4.799 | $5.359 |
| Sep 10 | $4.799 | $5.359 |
| Sep 11 | $4.859 | $5.399 |
| Sep 12 | $4.859 | $5.399 |
| Sep 13 | $4.799 | $5.399 |
| Sep 14 | $4.799 | $5.359 |
| Sep 15 | $4.799 | $5.359 |
| Sep 16 | $4.799 | $5.359 |
| Sep 17 | $4.779 | $5.399 |
| Sep 18 | — | — |
Last updated September 17, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Union Gap is located at 2310 Longfibre Rd, Union Gap, WA 98903-1513, in Washington. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular and Premium — this location does not sell diesel. Gas station hours are 6 a.m. – 10 p.m. on weekdays, 6 a.m. – 8:30 p.m. on Saturdays and 6 a.m. – 7:30 p.m. on Sundays, in local time.
Warehouse
Station details
Union Gap Gas station hours
- Mon–Fri
- 6 a.m. – 10 p.m.
- Saturday
- 6 a.m. – 8:30 p.m.
- Sunday
- 6 a.m. – 7:30 p.m.
Union Gap Warehouse hours
- Mon–Fri
- 10 a.m. – 8:30 p.m.
- Saturday
- 9:30 a.m. – 7 p.m.
- Sunday
- 10 a.m. – 6 p.m.
Nearby
Costco gas near Union Gap
- KennewickKennewick, WA · 64.6 mi$5.199Regular
- Federal WayFederal Way, WA · 99.0 mi$5.329Regular
- TukwilaTukwila, WA · 102.5 mi$5.499Regular
- TacomaTacoma, WA · 103.6 mi$5.099Regular
- SeattleSeattle, WA · 110.5 mi$5.399Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
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