Delta Launch History

Every orbital and deep-space launch attempt by the Delta family, year by year, drawn from the GCAT launch catalog.

Data current as of 2026-07-20.

Delta made 301 orbital and deep-space launch attempts between 1972 and 2024. Of those, 292 succeeded and 9 failed. The success rate comes to 97 percent. The busiest year was 1998, with 13 flights. The most recent flight in the catalog was in 2024.

301

Launch attempts

292

Successes

Failures

97%

Success rate

Launches per year

Successes Failures Each bar links to that year's full chronology.

Year by year

Year	Attempts	Successes	Failures	Success rate
2024	1	1	0	100%
2023	1	1	0	100%
2022	1	1	0	100%
2021	1	1	0	100%
2020	1	1	0	100%
2019	3	3	0	100%
2018	3	3	0	100%
2017	2	2	0	100%
2016	4	4	0	100%
2015	3	3	0	100%
2014	5	5	0	100%
2013	3	3	0	100%
2012	4	4	0	100%
2011	6	6	0	100%
2010	4	4	0	100%
2009	11	11	0	100%
2008	5	5	0	100%
2007	9	9	0	100%
2006	9	9	0	100%
2005	3	3	0	100%
2004	8	7	1	88%
2003	9	9	0	100%
2002	4	4	0	100%
2001	7	7	0	100%
2000	7	7	0	100%
1999	11	10	1	91%
1998	13	12	1	92%
1997	11	10	1	91%
1996	10	10	0	100%
1995	3	3	0	100%
1994	3	3	0	100%
1993	7	7	0	100%
1992	11	11	0	100%
1991	5	5	0	100%
1990	11	11	0	100%
1989	8	8	0	100%
1988	1	1	0	100%
1987	2	2	0	100%
1986	2	1	1	50%
1984	4	4	0	100%
1983	8	8	0	100%
1982	7	7	0	100%
1981	5	5	0	100%
1980	3	3	0	100%
1979	3	3	0	100%
1978	10	10	0	100%
1977	10	8	2	80%
1976	9	9	0	100%
1975	12	12	0	100%
1974	7	6	1	86%
1973	6	5	1	83%
1972	5	5	0	100%

Variants

Counts for each Delta variant recorded in GCAT, at LV_TYPE granularity. Variants with their own page are linked.

Variant	Flights	Successes	Failures	First year	Last year
Delta 7925	34	33	1	1990	1997
Delta 2914	30	29	1	1974	1979
Delta 7925-9.5	28	28	0	1998	2009
Delta 7920-10C	20	20	0	1997	2017
Delta 4M+(4,2)	15	15	0	2002	2019
Delta 4H	15	14	1	2004	2024
Delta 7420-10C	14	14	0	1998	2018
Delta 6925	13	13	0	1989	1992
Delta 3914	12	10	2	1975	1986
Delta 7320-10C	8	8	0	2004	2015
Delta 4M+(5,4)	8	8	0	2009	2019
Delta 3910/PAM	7	7	0	1980	1982
Delta 2910	6	6	0	1975	1978
Delta 3920/PAM	6	6	0	1982	1987
Delta 7920-10	6	6	0	1995	2001
Delta 3924	5	5	0	1982	1987
Delta 7320-10	4	4	0	1999	2003
Delta 0300	3	2	1	1972	1973
Delta 2310	3	3	0	1974	1981
Delta 2313	3	2	1	1974	1977
Delta 3910	3	3	0	1980	1988
Delta 3920	3	3	0	1982	1986
Delta 7326-9.5	3	3	0	1998	2001
Delta 7425-9.5	3	3	0	1998	2002
Delta 8930	3	1	2	1998	2000
Delta 4M	3	3	0	2003	2006
Delta 7920H	3	3	0	2003	2011
Delta 7925H	3	3	0	2003	2007
Delta 4M+(5,2)	3	3	0	2012	2018
Delta 0900	2	2	0	1972	1972
Delta 1604	2	2	0	1972	1973
Delta 1914	2	2	0	1972	1973
Delta 2913	2	2	0	1975	1976
Delta 4925-8	2	2	0	1989	1990
Delta 6920-10	2	2	0	1990	1992
Delta 7925-10	2	2	0	1994	1996
Delta 7925-8	2	2	0	1994	1996
Delta 7920-10L	2	2	0	2002	2004
Delta 7925-10L	2	2	0	2006	2009
Delta 1900	1	1	0	1973	1973
Delta 1913	1	1	0	1973	1973
Delta 1410	1	1	0	1975	1975
Delta 1910	1	1	0	1975	1975
Delta 3913	1	1	0	1981	1981
Delta 3920-8	1	1	0	1989	1989
Delta 5920-8	1	1	0	1989	1989
Delta 6920-8	1	1	0	1990	1990
Delta 6925-8	1	1	0	1990	1990
Delta 7920-8	1	1	0	1997	1997
Delta 7426-9.5	1	1	0	1999	1999
Delta 7425-10	1	1	0	2001	2001
Delta 7925-10C	1	1	0	2007	2007
Delta 4H/Star 48BV	1	1	0	2018	2018

Recent launches

The most recent Delta family launches, newest first.

Date	Designator	Payloads	Vehicle	Site / Pad	Outcome
Apr 9, 2024	2024-067	D4-45/D389 : ORION 12	Delta 4H	CC / SLC37B	Success
Jun 22, 2023	2023-089	D4-44/D388 : ORION 11	Delta 4H	CC / SLC37B	Success
Sep 24, 2022	2022-117	D4-43/D387 : CRYSTAL Block 5 F3	Delta 4H	VS / SLC6	Success
Apr 26, 2021	2021-032	D4-42/D386 : CRYSTAL Block 5 F2	Delta 4H	VS / SLC6	Success
Dec 11, 2020	2020-095	D4-41/D385 : ORION 10	Delta 4H	CC / SLC37B	Success
Jan 19, 2019	2019-004	D4-38/D382 : CRYSTAL Block 5 F1	Delta 4H	VS / SLC6	Success
Sep 15, 2018	2018-070	D381 : ELFIN, ELFIN-STAR, CalPoly CP7 +2 more , SurfSat, ICESAT-2	Delta 7420-10C	V / SLC2W	Success
Aug 12, 2018	2018-065	D4-37/D380 : Parker Solar Probe	Delta 4H/Star 48BV	CC / SLC37B	Success
Nov 18, 2017	2017-073	D378 : EagleSat, Fox-1B, MakerSat-0 +3 more , MiRaTA, Buccaneer-RMM, JPSS-1	Delta 7920-10C	V / SLC2W	Success
Jun 11, 2016	2016-036	D4-32/D374 : ORION 9	Delta 4H	CC / SLC37B	Success
Jan 31, 2015	2015-003	D370 : CalPoly CP10, GRIFEX, FIREBIRD U4 +2 more , FIREBIRD U3, SMAP	Delta 7320-10C	V / SLC2W	Success
Dec 5, 2014	2014-077	D4-28/D369 : Orion CM001	Delta 4H	CC / SLC37B	Success
Jul 2, 2014	2014-035	D367 : Orbiting Carbon Observatory	Delta 7320-10C	V / SLC2W	Success
Aug 28, 2013	2013-043	D4-24/D364 : Enhanced CRYSTAL 2110	Delta 4H	VS / SLC6	Success
Jun 29, 2012	2012-034	D4-20/D360 : ORION 8	Delta 4H	CC / SLC37B	Success
Oct 28, 2011	2011-061	D357 : M-Cubed/COVE, Explorer 1 Prime Unit 2, AubieSat-1 +4 more , Radio Aurora Explorer, DICE-2, DICE-1, NPOESS Prep Project	Delta 7920-10C	V / SLC2W	Success
Sep 10, 2011	2011-046	D356 : GRAIL B, GRAIL A	Delta 7920H	CC / SLC17B	Success
Jun 10, 2011	2011-024	D354 : SAC-D	Delta 7320-10C	V / SLC2W	Success
Jan 20, 2011	2011-002	D4-15/D352 : Enhanced CRYSTAL 2109	Delta 4H	VS / SLC6	Success
Nov 21, 2010	2010-063	D4-14/D351 : ORION 7	Delta 4H	CC / SLC37B	Success
Nov 6, 2010	2010-060	D350 : COSMO-Skymed 4	Delta 7420-10C	V / SLC2W	Success
Dec 14, 2009	2009-071	D347 : WISE	Delta 7320-10C	V / SLC2W	Success
Oct 8, 2009	2009-055	D345 : WorldView-2	Delta 7920-10C	V / SLC2W	Success
Sep 25, 2009	2009-052	D344 : STSS-Demo 2, STSS-Demo 1	Delta 7920-10C	CC / SLC17B	Success
Aug 17, 2009	2009-043	D343 : GPS SVN 50	Delta 7925-9.5	CC / SLC17A	Success

Showing the latest 25 of 275 launches.

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